Feature:1.Multifunctional, used as the power bank, hand warmer, flight and maage function.2.Made of aluminum alloy and ABS materials, smooth, warm, portable, compact and non-slip with one hand.3.With 3 adjustable heating modes, the independent display LEDs help you to set the temperature.4.In addition to warming your hands, it can also be used as a backup battery for mobile phones, to charge your phone in an . Support overdischarge, overcharging, overheating and short circuits.5.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:Material: Aluminum Alloy+ABSBattery Capacity: 6000mAh (high-quality high temperature resistant polymer lithium battery)Charging Time: About 4 hoursSize: 110*60*30mmColor: Black, blue, silver, rose goldProduct Temperature: Low temperature: 40℃ , constant temperature: 50℃ , high temperature: 60℃Product Service Time: low temperature: about 12 hours, constant temperature: about 7 hours, high temperature: about 6 hoursInput/Output: 5V/1AFunction: Power Bank, Hand Warmer, Flight ,MaagerPackage Includes:1 x Electric Hand Warmer1 x USB Cable