Item Type: Pocket Hand Warmer Material: ABS, Aluminium Alloy Function: Heat, Night Light Battery: Lithium Battery (Included) Capacity: 1200mAh Heating Gear: 2 gears, 1 gear 45, 2 gear 55 Package List 1 x Hand Warmer 1 x Charging Line 12 Gears: Hand warmer with 2 temperature gears of 45, and 55 for you to adjust, with night light for convenient use. 2Hanging Strap: USB hand warmers are designed with strap, easy to carry and use, and can also be directly put into the pocket for use. 31200mAh Battery: Pocket hand warmer built in safety explosion proof battery, with 1200mAh in capacity, which is safe to use. 4High Heat Transfer: Portable hand warmer built in aluminum alloy thermal conductor, provide excellent heat transfer, effective reduce loss. 5Portable Size: Pocket warmer can be put in any pocket or bag when you go out, which is a perfect hand warmer solution in cold weather.