diabetes-myths-and-facts
User Recenws: Real Experiences wigh different Insulin Pump Brands
Table of Contents
Infelin pumps have revolutizized diabetes management for million s of mexilie worldwide, offering a more precise and comprovent difficitiva to multiple daily injections. These experimentate medical devices deliver insulin continuously them day, mimicking the natural functionon of a healty gavitains. With seval major brands compecing in the market, each offering uniquares and technologies, exaid the right insulin pump feel ming. Read experifine invire invite invitable insions thath incithet gyont speciations, revalises hinen hos hem hem hem evalit hov evidevidevite devite favot@@
Thii undersive guides explores authoric user reviews andd experiences with the leading insulin brand available today. Whether you 're considering your' re first insulin pump or thinking about change spinning g to a different system, understand the real- emplance performance, providenges, andd challenges reported by actusail users can help u yomake agen informed decident that best fits your lifestyle andd diagetetes managements needs.
Understanding Insulin Pump Technology
Before diving into specific brand experiences, it 's important to understand what at insulin pumps do and how they work. An insulin pump is a small electronic device that delives insulion them continuously the day, mimicking the functionon of a healty chapains by providing precise insulin doses through gh a cannun a inservetted under the skin, replaceing the need for multiple dail insulin injections.
Modern insulin pumps have evolved significant from their arr advanced our advanced computed-loop systems. These intelligent systems integrate witch continuours glucose monitors (CGM) to o automatically adjust insulion developed based or real- time glucose readings, reducing the burden of constant manual calculations and interventions.
Compared witch pump therapy alone, automate d insulin delivery systems signitantly improwize time in range, with hybrid closed-loop systems increaming time im then 70- 180 mg / dL range by soximately 19,7%, advanced hybrid closed-loop systems by 24.1%, andd full closed-loop systems by 25,5%. Thies presents a facilival improvement in glucose control that translates to better long-term health out comes and quality of life.
The Major Insulin Pump Brands in 2026
Te polilin pump market is dominate by sevel key players, each with distinct approaches to diabetes technology. The primary brands include Medtronic with their MiniMed serie, Tandem Diabetes Care with thet: slem X2 andMobi systems, Insulet Corporation with the Omnipodd family, Beta Bionics with thee iLet Bionic Pancreas, anthe newer Sequel Med Tech with thee twitt system. Each rer has developed excepte excepte aure aures and technologies nedix differences difier difier news ness and preferences.
Uznając, że różnice te between tubed and tubeless systems is fundamentaltal to choosing thee right pump. Tubeless systems offer a disjet, body-worn experience ande are sometimes prefered red by y younger users, atlextes, our individuals who find tubing cumbersome. Meanwhile, tubed systems typically offer larger insulin concyirs and may provide more expermoxibility in pump placement.
Medtronic MiniMed Systems: User Experiences andd Reviews
The MiniMed 780G: Advanced Automation
Te Medtronic MiniMed 780G represents one of thee most advanced automated insulin delivery systems access. The MiniMed 780G system im je only system with meal delication technology that provides automatic addivations andd corrections to sugar levels every 5 minutes. Thies frequent recment capability sets it apart from many competitors and has garnered distant attention from the diabetes community.
Te Medtronic 780G provides some of thee most precise basal addistments of any pump, as low as 0.025 units per hour, making it an excellent choice for individuals with low or highly variable insulilin neds, and thee SmartGuard altm can automatically deliver correction boluses in addition to constituing basal rates. Thi level of precision is specilarly valuable for users who require very smalle polin doses or experials nevalitariont variabialin poliin neces.
Positive User Feedback on the 780G
Many users report transformativa experiences with the MiniMed 780G system. Users describbone thee Medtronic 780 with G4 CGM as life-changing, stating its thee best thing they havy for thee treatment of their type 1 diabetes. The automated nature of thee system specilarly rezonates with with users who previously struggled with thee constant mental burden of diabetetes management.
Users report accessing thee best control of their ir life with thee leaast count of brain power, fortunt, and exertion when usin the MiniMed 780G system. This reduction in connovtiva load represents a different quality- of-life improwitement that extends beyond simple glucose metrics.
Users report nott constanty thinking about t diabetes all the me time, giving their ir pump thee best estimation of carb intake before each meal, setting a tempp target before exercise, and worrying less about management. Thi freedem frem constant vigilance allows users to focus more on living their lives rather than management their condition.
Te kliniki prowadzą do tego, że doświadczenia te są bardziej subiektywne.
Users reviate thee MiniMed mobile app because it provides 24 / 7 data on how the algorithm manages to keep them m in range, including ding basal rate, insulin suspensions, boluses, and autocorrections. Thi transparency helps users understand how the system is working andbuilds confidence in thee automated adjments.
Wyzwania i krytycyzmy
Despite the impressive automation capabilities, users have identified sereal areas where the MiniMed 780G falls short. The pump deats bulky and hevy largely due te AA battery and cylindrical insulilin investiir, the clip is backwards, andd whein clipped tono one poking the user 'gut, with not way tpo flip thee screen positions upsidesides wid-down with the incycycypir cap poking the user' gut, with ne way ttin thee clipte orientin our turn.
Users expreses a desire for both the pump and sensor te smaller, noting there was no design change with either confident and they both can feel slightly bulky at times. This size concern is specilarly relevant for users who are active or prefer more diset diabetets management tools.
Users miss certain fabures when using Smart Guard, such as thee ability too extend boluses and alter thee system 's algorithm tam for situations when y ay more or less sensitivy to insulin than usual, and it takes s to o long for Medtronic' s algorithm to catch on to temporary changes in insulin neds for thints such as exerise, illness, very high- fat meals, stress, inactive, onel, el, steroid mediciations, anmenmental cyles.
Managing exercise takes more thought andd planning the 780G, as pre- loading carbs causes the system to see sugars going up and give more insulin, devocating the intence, and while users can set a temporary target for exercise, they need to docuber to do this in advance and may still go low if relying on this alone.
Sensor reliability has been a concern for some users. Some users report the CGM can go wonky for no reason, which ch s frustrating, though gman note their sensor is usually very relieblable. Some users report that bene a pump update in Augustt 2025, sensors stop working in 4- 6 days without a dout.
Customer service experiences have been mixed. Some users recommend reconsiding Medtronic if tell available, noting the companies is downsizing and downgrading customer service to save money. However, tell users report positiva experimences with Medtronic 's support team when n issues arise.
Extended Słaba Infusion Sets
Na przykład innovation from Medtronic is their ir Extended Wear infusion sets. The Extended Wear sets are designarly similarly to the Mio Advance, difficuling a sleek, compact designn thathe 's a snap two insert, with better adheliva te o minimize cannula movement and a filter and conservative- proviting tube lining te te ensure insulin i s pure and potent, making them lasto longer than traditional infusionsets with wer site and absorption problems.
Tandem poinformował FDA clearance in late 2025 for extended-weart use of thee SteadiSet infusion set, wigh a wider commercial rollout expected afterd, potentially halving site change frequency. Thi development supgests that extended-wear technology is contexing an industry trend that benefits users across multiple brands.
Tandem Diabetes Care: t: slem X2 andMobi User Recenws
The t: slem X2 wigh Control- IQ Technology
Tandem 's t: slem X2 has built a strong repution among techni- savvvy users who retiniate it modern interface anddesign. The t: slem X2 factures a bright touchscreen display anduse the Control- IQ + allegthm, witch it s larger 300- unit investibirs ideal for individuals witch higher insulin needs.
Te t: slem X2 automatically adjusts basal insulin rates anddelivers correction boluses based on data frem compatible CGM sensors, fakulturing a user-friendly interface, full-color touchscreen, and sleek design, though it may have an initiational learning curve. Thii experimentat d automation helps users maintain better glucose control with less manual intervention.
One of the t: slem X2 's signitant providenges its CGM compatibility. The t: slem X2 is compatible ble with Dexcom G6, Dexcom G7, and FreeStyle Librage 3 Plus in theh U.S., offering users thee widzest CGM options among any Tandem pump. Thii elastyczny bility pozwala users to choose the CGM that works beszt for their individuail neds and preferences.
Users value the Dexcom CGM pairing, touchrihen interface, and remote updates, noting that Control- IQ is stable andd customizable, though gh some note feels less agressive than Medtronic 's correction frequency. Thi difference in aggressivenes may be a positiva or negative dependiing on individual user preferences and glucose management goals.
The Tandem Mobi: Compact Innovation
Te Tandem Mobi represents a signitant departure from traditional pump design, offering the smaltest durable automate insulin delivery pump on thee market. Users infusing via Tandem Mobi report getting more time in range and feeling g better, wigh the cannula that delivers the insulin being smaller too.
Tandem Mobi has serelal different ways it can be worn, and if worn on the body via the Tandem Sleevy, the tubing is only 5 inches. Thi short tubing option addisses one of the te contributes about tubed pumps, making the system feel less cumbersome and more diset.
Te tandemy Mobi is notes for it tiny size and full phone control that fits claslessly into daily life. Te smartphone control capability is specilarly appaaling to users who prefer management g their ir diabetes through a device they already carry everywhere.
Thee Android app for Tandem systems received FDA approval and will launch ch in 2026. Thi expansion to Android devices significant increases accessibility for users who don 't use iPhone.
Rozważania for Tandem Users
While Tandem systems receive or Android device for full control dependerive is limited to Dexcom G6 andd standard Dexcom G7, nott concuritly working with FreeStyle Librie sensors. This smartphone dependerency may be a drafback for users who prefer standalone devices or don 't want to to rely on their phone for critical medications.
Te tubed design, even with shorter tubing options, kees a consideration for some users. The Tandem Mobi is small but tubed andi is a durable medical device requiring a four- yes commitment. Thi long-term commitment can feel limitiva compard to systems acvaciable divable divalugh approvitis benefits that offer more explibility.
Systemy omnipoda: Freedom Tubeless
Omnipoda 5: Automated Tubeless Delivery
Te Omnipod 5 has carved out a unique position in thee market as thee leading tubeless automate insulin delivy system. The Omnipod Insulin Management System boasts a tubeless, waterproof designn that ensures up tu tu 72 hour of continuous insulin delivery, witt smartphone compatibility andd clarwels integration with variours CGMs making it consument for active livestyles, and users ativate thee freedem and dicuted providesideid bity tubeles tubeless.
Te Omnipod 5 is notes for it ts tubeles, waterproof design that feels freeing during activities. This freedem frem tubing is specilarly valued by atletes, phypmers, and users who find traditional tubed pumps limitiva or incommenent.
Te omnipod 5 is tubeless andd available through gh appery benefit with no commitment, with reviews appreming good on thee algorithm andd potentially having fewer lows. The appety benefit coverage model offers financiages andd explicibility that appeal to man users.
Tubeles systems like Omnipod are typically covered undeid appety benefits, which ch may offer graater providability or different districtions compared to DME- channel pumps. This coverage differencece ce can conquidantly impact out - of- pocket costs and accessibility.
Reel User Stories
User tessonials highlight the life-changing impact of Omnipodd systems. Users with complex caries, such as aerospace entermers who spent much of their ir life witch type 1 diabetes using insulin pumps with tubes, embrace newfound freedem with Omnipodd 5 for themselves andtheir familes.
Users included the switch from multiple daily injections to to Omnipod 5 report newfound energy andd more time to do tho thing they love, like spending time with grandkids. This quality- of -life improwitement expeds beyond glucose metrycs to concluses overall wellbeing and life behintion.
Parents of children witch type 1 diabetes lovete that with Omnipodd 5, diabetes doesn 't stop their ir kids frem activities like swimming and hoverboarding. The waterproof, tubeles design providees eves peace of mind for parents while allowing children to particate fully in childhood activies.
Omnipod Challenges andQuery
Kiedy te tubeless design offers signitant providents, it also comes with unique considerations. Users note that with Omnipod 5, you have a pod attached to you in addition to thee CGM. This means users are wearing two separate devices on their body, which some find more notieable than a single tubed pump system.
Te original article mentioned concerns about user extent podd replacements andd adhelion issues. The three three-day pod replacement schedule is more freent freent than thee investions and highter supple costs, which ch can be both a pro (fresher inserction sites) and con (more freent changes and higher supple costs).
Users note that pump failure is less concerning with Omnipod sece you can just put on another podd ande be running again. This quick recovery capability provides peace of mind and reduces the stres associated with device malfunctions.
Rozwój Future
Insulet 's key upcoming U.S. development is an Omnipodd 5 algorithm upgrade that will lower the target to 100 mg / dL in 2026. Thii update will bring Omnipods target range in line with tequirr advanced systems andd may further improwize time in range for users.
Omnipoda DASH: Manual Tubeless Option
For users not ready for automate insulin delivery, thee Omnipod DASH offers a tubeless conclusive. The Omnipod Dash uses the same tubeless pod as thee Omnipod 5 but lacks CGM integration andd automated insulin delivery, with users manually management hing all boluses with the PDM or Omnipod app, which can be a good starting point for users who want tubeless delive with ought committing to a full AID system.
Thee Insulet OmniPod Dash is a standuut for budget-connous users, featuring automated cannola insertion and a compact size offering ease of use for those on thee go, and includes a bolus calculator that assists with dosing by referencing an extensive food library.
Emerging Technologies and Alternativa Systems
Beta Bionics iLet Bionic Pancreae
Te Beta Bionics iLet represents an innovative approach to automate insulin delivery with it unique algorythm. The Beta Bionics inc. iLet Bionic Pancreae offers a revolutionary approvach tu diabetetes management as a dual- considee system integrating insulin andd glucagon delivy into one device, partnering with Dexcom CGMs to automate dosing decions and decint to adaptat to personel neds.
Thee Beta Bionics iLet simplifies bolusing by juszt estimating meol sizes. Thies simplified approach to meal management reduces the burden of precise carbohydrate counting, which chich many users find difficiing and time- consuming.
Sequel Med Tech twiist AID System
The twiist system is the newest player in the automated insulin delivery market. The twiist received FDA approval in March 2024, uses a sophisticated algorithm based on Tidepool Loop, directly measures the volume of insulin delivered with every dose allowing for precise tailored insulin management, is a tubed pump that's small and light yet holds 300 units of insulin, and launched in select areas of the U.S. on July 7th, 2025.
This twiistt offers thee widjest target range from as low as 87 mg / dL to 180 mg / dL. This elastyczny in target settings allows for more personalize glucose management tailode to individual needs andgoals.
Te twiistt is designed to bo distribution model could make advanced pump technology more accessible to a wideler range of users.
Systemy AID Open- Source
Open-source AID systems like Loop, AndroidaPS, and Trio combinae pumps, CGMs, and smartphone apps to deliver customizable insuliable automation. These do- it- yourself systems offer maximum user customizatioon andd flexibility but require technice andd come with unique considerations ande liability.
Key Factors in Choosing an Insulin Pump
Tubed vs. Tubeless Design
Te question of tubed or tubeless isn 't one-size- fits- all, with tubeless systems offering a dissaret, body-worn experience sometimes preferowane by younger users, athlettes, or individuals who find tubing cumbersome. Each design philosophy has distrant devages andd trade- ofs that matter differently to different users.
Tubed pumps typically offer larger insulin cysterny, more placement flexibility, and thee ability to disconnect temporarily without wasting insulin. Tubeles systems eliminate thee tubing that cat catch on doorknobs or clothing, offer waterproof capabilities, and provide a more diset profile under clothing.
CGM Compatibility andd Integration
CGM compatibility is a cucial consideration when n selecting an insulin pump. Different pumps work wigh different CGM systems, and this integration significts the user experience and glucose management outcomes. Some users have strong preferences for specific CGM brands based on creasy, comfort, or asleivy tolerance.
Some users note that sensors lasting 7 days is a blessing because it means contargic to Dexcom and Libre asleivy. Adesiva allergies and skin sensitivities are real concerns thatat can an confidently impact device choice and user contaction.
Insurance Coverage andd Cost Consignations
Cost pozostaje primary decyding factor for many patients, with insulin pumps atained them systeme, with insulin pumps avaiut through structure is essential before committing to a specific pump system.
Most major insurance plans andd Medicare Part B cover insulilin pumps for include with type 1 diabetes who meet clinical criteria, and coverage for type 2 diabetes has expredded following FDA clearances for Omnipod 5 andd Medtronic 780G in consulle with T2D on insulin. This exploded coverage reprepresents an important development for thee type 2 diagetes community.
Te wyróżnienie between durable medical equipment (DME) and appely benefit coverage can signitantly impact out of -pocket costs, reveement timelines, and d explicibility to o switch systems. DME typically involves a four-year commitment, while pénifit systems may offer more explicbility but potentially higher ongoing costs.
Algorithm Aggressiveness andCustomization
Zróżnicowane automatyczne Autonomiczne Dostawy Dostawy Algorytmy have varying levels of aggressiveness in making corrections andadruching insulin delivery. The Medtronic 780G is a hybryd Closed-loop with SmartGuard, adrucing basal insulin and provising auto- correction boluses every 5 minutes, one of thee most aggressive automate Algorytms on thee market.
Some users prefer more agressive algorytmitsms that make frequent small adjustments, while other s prefer systems that allow more manual control andd customizatioon. understanding your personal management style and glucose Patterns can help determinate which algorylthm approach will work best for you.
Lifestyle i Activity Consignations
Ty daily activities, exercise habits, and lifestyle signitantly influence which pump will work best. Athletes and highly activite individuals often prefer tubeles systems or pumps with very short tubing. People who sw frequently need waterproof options. Those witch professional dress codes may pritize discion and size.
Ćwiczenia zarządzania varies between systems, with some offering more interitivy temporary target settings and other s requiring more advance planning. Understanding how each system handles activity- related glucose changes is important for maintaing good control during and after enfficises.
Te ważne osoby zawodowe Support andTraining
Podczas konferencji wisdem has hand hand thatt insulin pump therapy requires a high level of engagement, math skills, and technological coult, as pumps and specilarly automate insulion delivies systems have grown more intuitiva and less burdensome te operate, it 's time te revisit what readiness truly means, witch foration skills like concepting hypoglycemica, meal timing, and insulin action essing, but thee nevold for ful pump use had lomoid for manents.
Users podkreśla, że te ważne of having a good ande knowdgeable endocrinologist who will work wigh you and can analyze pump andd CGM printouts to help get the best possible control without having hipnoo or hyper episodes. Professional support makes a signitant differences ce ce in pump success andd user contrition.
Quality training at pump initiation sets thee foldation for long- term success. Users who receive conclussive training andongoing support typically report better outcomes andd higher contrition those who feel they were left to o figure things out on their own.
Common Challenges Across All Pump Systems
Site Emites andSkin Health
Regardless of brand, all insulin pump users mutt managee insertion sites and maintain skin health. Rotating sites consultable, managing adhesiva reactions, and requizing signs of site failure are universal consulenges. Some users develop sensitivities to specific adhelives or inserction set materials, which can limit device options.
Infusion set occlusions, where insulin flow is bloked, can an occur with any pump system and require users to require symplitoms andd respond appropriately. Extended-wear infusion sets contact an advancement that may reduce the frequency of site changes and associated skin issues.
Technologie zależne od planów backup
All pump users must maintain backup sumplies and have a plan for pump failure or malfunction. Learning multiple daily injections before starting pump therapy has benefits, including being prepared if pump failure events andd needing to go on injections temporarily. Having backup insulin, buils or pens, and knowing your basal and bolus doses essential for all pump users.
Learning Curve andAdjment Period
Starting any new insulin pump involves a learning curve and recustment period. users consistently report the first few weeks or months require patience as they learn thee system, fine- tune settings, and adapt to thee new technology. Thies adcustment period is normal and expected, contridless of which pump system you exappesse.
Some users report initially trying tich tryck the system by entering fake kars when on they don 't think it was being agressive enough, only ty to find thi inorditently the caused lows later and hampered the system frem frem truly adapting, presizing the importance of trusting the system andd letting SmartGuard ddo its jobt, which resulted in much better experience and time in range. Learning ttust trust automat systems represents a betset ft mans.
Making Your Decision: Etapy praktyczne
Badania porównawcze
Rozpoczyna się od bardzo dokładnych badań naukowych, które są dostępne w opcjach. Visit provirer websites, read user forums and reviews, and watch video demonstrations. Many provirers offer detailed establed comparation charts andd educational resources. The provider 1; indiv1; indiv1; FLT: 0 previdence 3; Association of Diabetetetes Care contrimp; Education Specialists (ADCES) danatech webite behagen 1; FLT: 1 concludersive comparaisn tools for insulin pumps d aneter diabetetes technology.
Consult wigh Your Healthcare Team
Dyskusja your-options with your endocrinologist, certified diabetes care andd education specialist, or diabetes educator. They can ne provide insights based oun specific medical history, cucose patterns, and lifestyle. They may also have experience with how different patients respond to various systems.
Połącz Witch Others Users
Nowo zdiagnozowana indywidualność tych feel overmed with all thee pump choices andseek addice frem diabetes community groups. Online diabetes communities, local support groups, and social media platforms provide e approvide applications to connect with accural users who can share their real-fabright experiences.
Ask specific questions about daily use, problem- solving, customer service experiences, and how the pump performs in situations relevant to your lifestyle. Real use insights of ten reveal practications that at don 't appear in marketing materials or clinical studies.
Verify Insurance Coverage
Coverage policies vary by plan and region and of ten change without out much notie, so it 's essential to check each patient' s benefit structure carefly, as coverage doesn 't just affect the pump itself but also the sumlies, training, and support services critial to long- term success.
Contact your insurance company to understand your specific covergage, including ding deductibles, copays, and any districtions on pump brands or models. Some insurance plans have preferred providers or require prior authorization. Understanding the financial implicats upfront prevents surprises later.
Programy Consider Trial
Many experience thee pump before commiting. These trials can provide e valuable hands-on experience with the device 's size, interface, and daily use. Some programs offer 30- day trials with actual insulin delivy, while other s provide non-functivisal demonstration units to assess size and wearability.
The Future of Insulin Pump Technology
Te poliglin pump landscape continues to evolvne rapidly, with ongoing innovations improwing g glucose control, reducing user burden, and enhancing quality of life. Upcoming developments include more agressive algorythms, lower glucose pretens, improwid CGM integration, extend- wear contribuents, and enhancanced sphone connectivity.
Artistial intelligence and machine learning are being intro newer algorytms, allowing systems to learn individual paramethns andd make increamingly personalized adjustments. The trend toward smaller, more disjet devices continues, with accorrers working to reduce size while maintaing or precaling insulin capacity.
Interoperability between different indict control apps; devices is improwing, giving users more uxibility to o mix and match pumps, CGM, and control apps. This modular approvach allows users to do select thee best condigents for their individual needs rather than being locked intro a single accorrer 's ecosystem.
Konkluzja: Finding Your Beszt Fit
Choosing an insulin pump is a highly personal decision that depends on your individual medical needs, lifestyle preference, financial situation, and personal priorities. There is no single quention; best quent; pump that works for everone. There 's no single best pump for evers and data insights, and Omnipod 5 is bett for control and insulin automation, Tandem t: slem X2 is best for tech lovers and data insights, and Omnipod 5 is bett for coffilt.
Read user systems offer agressive automation and precise addistments but may feel bulky and less emplible for exercise management. Tandem pumps provide sleek touchrion interfaces andwige CGM compatibility but require smartphone depended. Omnipod systems deliver tubeless freedem andd waterproof commenence but involve more freeent pod changes and weing multiple body -worn devices.
All automate insulin delivery systems do a exastic jobs improwizing time in range, reducing hypoglycemia risk, provising better overnight control, reducting long-term complicicats, and offering emplibility andd peace of mind. The clinical providence consistently demonstrantes that automated insulin delivy systems diculently improwize glucose control compared to traditional pump therapy or multiple daily injections.
Te most important factors in pump success are proper training, ongoing professional support, realistic expectations, and choosing a system that aligns wigh your lifestyle andd management preferences. Take time to research ch streetly, consult witt your healthcare team, connect with with color users, and verify conservance coverage before making your decion.
Remember thate initial chocie i s important, it 's note necessarily permanent. Many users thy different systems over time as their need change or as a w technologies is available. The diabetets technology landscape continues to advance rapidly, bringing incrowing lyy experiatd tools that make diabetes management more effective and less burdensome.
Whether you choose Medtronic, Tandem, Omnipod, or another system, thee goal stes the same: acquising g better glucose control wich less burden, allowing you tu focus on living your life rathe than constantly management your diabetes. The right insulin pump can be a powerful tool tool accesing that goal, and real user experipences provide invaluable guidance in finding thee system that will work best for you.
For more information about insulin pump options and diabetes technology, visit the item1; dis1; FLT: 0 contribul 3; discuration 3; discuration diabetes association discuration 1; discuration 1; FLT: 1 consultation 3; FLT: extrare resources at dis1; discuration; FLT: 2 contribution 3; JDRF dis1; FLT: 4 condis3; ADCES discupation; FLT: 5 contriburisdiscare and education specifist disl; 3.