Electric Hand Warmer electric hands warmer Electric Hand Warmer with 3.5 Hours Charging Time, Measures 92 x 49.6 x 20mm It is gradually getting colder with the approach of winter Do you have the problem of having cold, stiff hands and feet or are you worried about movement within numb knuckles The electronic hands warmer is absolutely your best idea to combat the problem Product features: There are nine steps in total for you to choose for heating The hand warmer is heated by a constant temperature without any injury It takes only 3.5 hours to charge and is very convenient to use Power saving, the weakest model (35℃) will last up to 7 hours and the strongest model (55℃) for 3.5 hours There are exquisite and lovable models with three colors to choose from: sapphire, goose yellow and pink Dimensions: 92 x 49.6 x 20mm Weight: 80g Time to charge: 3.5 hours approximately Switching to keep warm: one through nine steps with the minimum temperature of 35℃ and the maximum temperature of 55℃ Time to last: about 7 hours at the lowest temperature/5 hours at the middle temperature/3.5 hours at the highest temperature