At a press of a button heat is delivered in seconds for up to 6 hours to this rechargeable hand warmer which also functions as a power bank. Whether you’re the outdoor type or not the USB hand warmer will keep you comfortable despite the cold. The convenient power bank feature also recharges your USB compatible device, so you can stay connected while outdoors. It is easy to operate with 4 heat settings from 40 up to 50 degree centigrade and has dual heat plates for 360 degree heat. The handwarmer is mains or USB rechargeable. Dual heat plates for 360 degree heat and all round comfort, compact design and easy to operate - 4 heat settings, heats up in 10 seconds, provides 3-6 hours heat, power bank function for mobile setup, mains or USB rechargeable, charge time from low to full approx. 4 hours, Charging LED indicators, USB cable included, CE certified, ROSH compliant, recyclable. 1 x Rechargeable Hand Warmer, 1 x USB Cable. Cell: 18650 Li-ion Battery 5200mah Output: Standard USB with 5V 2A (MAX) Input: Micro USB with 5V 2A (MAX)