Features:- Made of high-tech aircraft grade aluminum and ABS materials, smooth, warm, portable, compact and non-slip with one hand.- With 3 adjustable heating modes, the independent display LEDs help you to set the temperature.- Multifunctional, used as the power bank, hand warmer, flashlight and massage function. In addition to warming your hands, it can also be used as a backup battery for mobile phones, to charge your phone in an emergency. - Support overdischarge, overcharging, overheating and short circuits. With the ergonomic hand warmer, you can easily and comfortably pull it out of your pocket.- Ideal for arthritis patients who need hyperthermia. Also suitable for hiking, camping, mountaineering in the winter.Specifications:Color: Black + WhiteMaterial: ABSBattery Capacity:10000mAhInput/Output: 5V/2ATemperature: Low Temperature: 40 degrees CeluisConstant Temperature: 50 degrees CeluisHigh Temperature: 60 degrees Celuis Packages Included:1 x Electric Hand Warmer1 x USB Cable