Label:Yes With 3 adjustable heating modes, the independent display LEDs help you to set the temperature. With the ergonomic hand warmer, you can easily and comfortably pull it out of your pocket. I more→deal for arthritis patients who need hyperthermia. Also suitable for hiking, camping, mountaineering in the winter. 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. Made of aluminum alloy and ABS materials, smooth, warm, portable, compact and non-slip with one hand. Specifications: Material: Aluminum Alloy+ABS Battery Capacity: 10000mA (high-quality high temperature resistant polymer lithium battery) Charging