【2 RECHARGEABLE HAND WARMERS】Reusable and fast heating make the hand warmer become a winter essential portable pocket heater for outdoor activities-travel, fishing, hiking, camping, skiing, cold weather dog walking and etc. One button to operate the electric hand warmer easily. 【LONG LASTING】 Equipped with a built-in 2000mAh rechargeable battery, the hand warmer can be used for 6-10 hours. You can charge both hand warmers simultaneously by the 2 in 1 type-C cord. A full charge takes mere 3-4 hours. The two-in-one hand warmer design allows you to use it for both of your hands, or share the warmth with your lover or friends. 【3 HEATING LEVELS】 There are 3 different heat levels-low (104~113°F), medium (113~122°F), high (122~131°F). Short press the button to switch the heating mode for your need. 3 indicate lights will show the heating level. Double click the button if you want to know the remaining battery power. 【SAFE & COMFORTABLE】 The shell of the hand warmer is made of ABS high-temperature and flame-retardant material. The hand warmer is very safe for the built-in intelligent temperature control chip and heating system, which provide protections including safeguards against overcharge, overvoltage, overcurrent, and short circuits. Use it with confidence. 【PERFECT WINTER GIFT】 Great winter gift idea for your lover, family and friends. Whether it's Christmas Day, a birthday, an anniversary, or a celebratory promotion, these hand warmers are a thoughtful gesture. Package including: 2 hand warmers, 2 lanyards, 1 pouch bag and 1 USB-C charging cord(2 in 1). Product Name: Heating Hand Warmer br/ Item model number: OT-91 br/ Shell material: ABS, aluminum alloy br/ Battery Type: Polymer Lithium Ion Battery br/ Battery capacity: 2000mAh *2 br/ Type-C input: 5V/2A br/ Output: 5V/2A br/ Temperature range: 40°C -45°C, 45°C -50°C, 50°C -55C br/ Product size: about 88mm*48mm*18mm br/ Product weight: about 190g br/ br/ Notice: br/ Due to the existence of conversion efficiency, the rated output capacity is smaller than the battery capacity. br/ Do not throw batteries into fire or immerse them in water. Improper use of the product may cause damage to the product or endanger personal and property safety, please pay attention. br/ It is strictly forbidden for non-professionals to disassemble and dismantle this product. br/ The relevant dimensions of this product are measured manually, and there may be certain errors. Please refer to the actual product for the standard size. br/ br/ br/ Package Including /b br/ Heating hand warmer *2 br/ Type-C cable*2 br/ Manual*1