Come and see our amazing products. It is a mini cute elk hand warmer, you can put it into your pocket, portable for outside and inside use.Our Rechargeable Hand Warmer can also be used as a portable power bank. NOTE: The heat function cannot be used when charging other device.Our hand warmer can heat evenly and quickly on both sides. There are 2 different temperatures: low (113 degree F/45 degree ) and high (131degree F/55 degree), press the button on side of the hand heater and you can feel warmth in few seconds.10000 mAh lithium rechargeable battery, charge 5-7 hours and can use 7-9 hours. Digital display can display the temperature and power, easy to charge in time, Visualized temperature, more security. Pls confirm further with us if any query about packing info, inventory status and time schedule.