Multifunction Hand Warmer USB Wristband New Smart Temperature Control Hand Warmer Heating Quickly Features: Built-in new thermostat for fast heatingConstant 40'C heat packs to further fatigue Soft silicone synthetic thermostatic heating pads , soft wrap-around fitHeat seeps in and feels as soft as a feather No need to hold it in your hand Keeps you warm at work,Upgraded Thermostat Chip No Need To Wait For Warmth 360° surround heat black technology Warms your hands,4-position key adjustmentVisualization of temperature 【PERFECT GIFT FOR WINTER】 Hand warmers to surprise your parents, kids,, family, girlfriend and anyone you cared about. With a for Christmas, Birthday, Thanks Giving Day, Valentine’s Day and such important festival. This high-tech warmer gift not can make her/his heart warm, but also her/his hands. 【Portable 】Handy carrying anywhere with any pocket or bag while sporting, fishing, hiking, camping, skiing, travel or play . Also a perfect reusable hand warmer solution in cold weather for a or office worker. Product Description: Pseudolaric : Smart Hand Warmer Product Power : 5 W Temperature Regulation : 4-speed Operating : key Operation Product Input : DC5V / 1A Battery Capacity : 2000 mah Product Material : High temperature silicone + plastic charging Time : 3 Hours Color : Orange / Purple / / Black / White Package Include: 1x hand warmer Note: Manual measurement, please allow slight errors on size. The color may exist slight difference due to different screen displays. Smart life: Innovative technology, intelligent drive, let ZKCCNUK small appliances become your home smart life partner. Comfortable and easy life: From exquisite night lights to humidifiers and other comfortable and efficient small appliances, ZKCCNUK small appliances take care of every corner of your home and make life more comfortable. Quality life: To create a quality life, choose beautiful and versatile ZKCCNUK home appliances, to bring high quality life experience to your home. Easy and convenient; One click operation, easy and convenient. ZKCCNUK small appliances make your life more carefree and master every moment of home. Exquisite design; A variety of options, comprehensive consideration, excellent functionality. ZKCCNUK small appliances not only meet your needs, but also the pinnacle of home aesthetics.