The 10 Best Usb Hand Warmer Of 2024, Tested By CampFireHQ

Operate Independently:We have equipped the twins hand warmer with independent charger accessories. you can turn each side off/on and charge each side separately.

Perfect Gift & Satisfaction Guaranteed：Christmas gift for family and friends，It's must have to spend a cold winter, especially for Raynauds arthritis sufferers for heat therapy needs .If you are not satisfied please contact us for an exchange or a 100% refund.If you are satisfied with us, you can share with your friends, if you have better design ideas, you can contact us, Don’t Hesitate

Portable Hand Warmers:Pebble Shaped, smooth and good touching feel. Handy carrying anywhere with any pocket or bag while sporting, fishing, hiking, camping, skiing…

Single Side Fast Heating:our each twins hand warmer just have one side can make warm,this design concept can make hand warmer get more warmer quickly and use more long time. Press the switch and instantly release the warmth for you. Rapidly warm up in seconds. 3 levels of temperatures 95-107°F/104-118°F/118-131°F at your choice.

Design Concept:When our participate in outdoor sports.One hand warmer just can make our one hand get warm. if we have twins hand warmer we can put them in two pockets to warm our hands.We also can share with lover,family and friends in party.When we don’t need them, we can magnetic them together to prevent loss.

【 3 Heat Setting in 1 Button 】 104℉-Cozy warmth for your cold hands. 122℉-Excellent as a "hot stone" placed on sore back and shoulder muscles. 140℉-Hot for bare skin, great for stomach, kneel and hip over clothing or dry towel. (Cloth pouch included)

【 Safety & Durable 】 Built in short-circuit protection, high quality ABS material make it odorless and safer even in consistant working. We promise a strict Ex-factory quality inspection, 12 months warranty and 24/7 customer service.

【 3s Quick Heat 】 Dual sided heat up to setting temp only need 15s, and maintain a consistent temperature. The high level reach to a toasty temp for winter.

【 Longer Working Time 】 Rechargeable 5200 mAh batteries for lasting reliable warmth - up to 8 hours run time. 2~3h charging time differs from the enviroment temperature.

【 Lightweight & Smooth 】 Grace appearance, smooth surface, small well-constructed body make it lightweight, easy to grasp, and slip into gloves or pocket. Perfect for hunting, fishing, camping, hiking and skiing.

2 in 1 Hand Warmer Power Bank: The camping hand warmer also can use as a power bank and comes with an adapter so you can use it to charge your phone. This electric pocket warmer supporting PD 3.0 and QC 3.0 fast charging input & output, which is the perfect portable charger on the travel, on a plane or anywhere else your phone needs to charge.

Uperior Performance and Safety: AUIIAH battery operated hand warmers certified by CE and FCC, built-in intelligent protection system keep it away from overvoltage, overcharge, and short circuit to make you and your device safer. It is long-lasting and helps to save waste compared to disposable hand warmers.

10000mAh Rechargeable Hand Warmer: This electric hand warmers rechargeable build-in 10000mAh battery with updated technology for long lasting heating to keep your hands warm in the cold weather. Great for who has Reynauld's.

A Great Gift Ideal: This hot hands hand warmers reusable easy to hold, soothing to rub, fits nicely in pocket and warmth can be felt through gloves, making this a fantastic cold-weather companion. Chargeable handwarmers is a great Christmas, Thanksgiving and Birthday gift for family and friends.

Double-sided Fast Heating: This portable electronic hand warmer heat up within seconds and with double-sided heating. Reusable hand warmer with 2 different heat settings, just press button to switch the temperature between 50-122°F/60-140°F. It will warm your hands when going on walks and when playing golf in cold weather.

【Quick heating hand warmer】High capacity rechargeable battery, chargeful in 3 hours, and use at low temperature can for 8 hours,giving you long lasting warmth. Used as a power bank to full charge your electronic devices at any time, compatible with iPhone and android phone

【Quality Warranty】If you're unsatisfied with this item for any reason, please contact us and we will do whatever it takes quickly to make sure you are 100% satisfied. ORDER YOURS TODAY!

【Portable & Convenient】Hand warmer & flashlight 4-in-1 built-in 10000mAh lithium battery. Suitable for chilly office work, cold classroom, sleeping, shopping, walking dog, traveling, camping, hiking or any outdoor activities in the cold weather.easy to put it in your briefcase, in your pocket,palm-size, carry it in anywhere.

【EXQUISITE TO THE TOUCH】 Rechargeable Hand Warmers, with a high-tech aluminum and ABS material, thousands of polished exterior material, smooth and warm, portable and compact as well anti-skid in one hand.

【DOUBLE SIDE HEATED & 3 DIFFERENT HEAT SETTINGS】 Press the switch and instantly release the warmth for you. Rapidly warm up all sides in seconds. 104℉/40℃; 122℉/50℃; 140℉/60℃. Use at low temperature for 104℉/40℃ 12 hours,Constant temperature 122℉/50℃ 8 hours, high temperature 140℉/60℃ 10 hours,Please turn on the most comfortable temperature for you

Model Number: Z4A18

FAST HEAT: The HeatBank 9s can switch between single or dual-sided heat. The palm-sized radiator to reach up to 120°F / 50°C operating temperature and sustain that cozy temp for up to 9 hours of run time.

BETTER REACTION TIME: Warm hands have better reaction times and dexterity.

INTENSITY LEVELS: 3 levels of high-powered heat (6 total). Indicator lights quickly show the selected heat settings. Blue lights illuminate for single side heat levels, or keep pressing the button until green lights appear.

RELIABLE & REUSABLE: Zippo’s HeatBank 9s provides a reliable, reusable, and powerful source of heat, keeping your key-tapping, button-smashing fingers cozy and nimble.

ERGONOMIC DESIGN & COMFORT: The curved, ergonomic design of the HeatBank 9s is easy to hold on to (but hard to let go of) and radiates its warmth to all the right places.

CHARGES PHONES & CONTROLLERS: Recharges your USB powered devices, so you don’t have to worry about phones, controllers, headsets, or other gear going dark when you need it the most.

BATTERY CAPACITY & CABLE: Rechargeable 5200 mah lithium-ion battery (included) for lasting reliable warmth. Battery and heat indicator lights signal when it is time to charge up, so your hands are always prepped for game time. Charging cable included.

- Heated hand warmers Brand New and High Quality, Warm, breathable and durable. Fashion forward,Cute and lovely. One Size Fits Most Hands-Best for women and children.

- Soft acrylic fibers materials increases flexibility, comfort, and fit. Two Adjustable Wrist Straps, Adorable heated toast characters sit on top of hands.

- USB Hand Warmer Fingers remain uncovered for unrestricted typing, gaming, crafting, etc. Great for use in the office or studio, indoors or outdoors.

- Finger-less gloves Fit for the office work. If the document processing, telephone hot lines, such as bank tellers, clerical worker.

- These versatile toasty hand warmers turn into finger-less gloves so you can keep your hands warm while text/typing and dialing.

【100% Satisfying Service】 If for any reason, you are not satisfied with our USB hand warmers, please contact us and we will do whatever it takes quickly to make sure you are 100% satisfied.

【Portable & Large Capacity】 Smaller and more portable than power banks. Handy carrying anywhere with any pocket or bag while sporting, fishing, hiking, camping, skiing, travel or play sports outdoors. Also a perfect reusable hand warmer solution in cold weather for a commuter or office worker. 9000mAh capacity can give a charge to mainstream digital devices on market.

【Adjustable Temps, Double-side & 3s Quick Heating】Our electric hand warmer can heat up in 3 seconds. There are three different temperatures [104~113℉ (40~45℃)], [113~122℉ (45~50℃)], 122~140℉ (50~60℃)] and the temp is stable. The double-sided heat lasts for a long time (up to 14 hrs) and can be used whenever you like.

【Safety is Top-of-mind】Safety is our priority, we only use premium chipset to control the heat levels. This mini hand warmer certified by UL, FCC, RoHS and CE, is made of high-quality materials, advanced capacitor resistance and high-quality polymer battery. It is shockproof, anti-scald, Anti-skid, Explosion-proof, Radiation-free, Green and Healthy heat transfer.

【Ideal Warm Winter Gifts】 Quick hand warmer & Power bank 2-in-1. It's not only a little handwarmer but also a emergency backup battery. The utility of electric hand warmers isn't limited to climbing. On ski days, mountain trips, or even just chilly cookouts, hand warmers are a major quality-of-life upgrade. AYRAVIIO rechargeable hand warmer is the best Thanksgiving, Christmas, New Year, birthday and anniversary gift for your family, friends and neighbors.

Large capacity of 5200mA can be as a power bank; 2-3 hours for a full charge and last 4-8 hours depending on temperature settings.

Double sided heating; perfect winter gifts, especially for Raynaud's.

UL certified with high Safety, no risk of burning or explosion; Radiation-free.

3 level temperature settings(104°F/122°F/140°F) and heating up rapidly; Long pressing of the power button will turn it on or off.

Perfect handhold and pocket size, micro-usb/Android charging port.

Bright red and white LED flashlight with 5 modes: red light only, white light only, red light blinking, white light blinking, SOS

Large capacity 5200 mAh rechargeable lithium ion battery, charges smartphones, MP3 players, cameras, and many other USB-powered devices

Includes USB charging cable and soft carry pouch

3-in-1 device: portable power pack, red and white LED flashlight, and hand warmer

Ultra compact design with dual-mode aluminum heating element

【Double-sided Fast Heating & 2 Levels】--- Our rechargeable heater rapidly warm up double sides in seconds. 2 levels of temperatures (113-122°F/131-140°F) at your choice.

【Large Battery Capacity】--- This reusable hand warmers long lasting Heat,built-in 5000mAh lithium ion battery,offer 4-8 hours warmth.It also can be used as a a emergency backup battery phone charger.

【Perfect gift】--- It's a MUST HAVE to spend a cold winter, especially for raynauds arthritis sufferers for heat therapy needs. And the portable hand heater suit for hunting,camping, skiing,walking dog,outdoor working,etc

【Safety & Exquisite comfort】--- Certificated with UL,CE, FCC, ROHS, PSE, METI - Our electronic hand warmer built-in overheating and over-charging protection sensors , high-tech aircraft-grade aluminum,ABS material, thousands of polished exterior material, smooth and warm. You can enjoy comforting warmth security.

【2Pack & Portable Pocket Size 】--- One Rechargeable hand warmer just can make our one hand get warm, if we have twins hand warmers rechargeable we can put them in two pockets to warm hands.We also can share with lover,family and friends.