Rechargeable USB Electric Hand Warmer, 9000mAh, Double-Sided

Excellent working condition High Temp: about 107.5-131 ℉, (work about 7 hours) Medium Temp: about 104-118.5 ℉, (work about 11 hours) Low Temp: about 95-107.5 ℉, (work about 14hours) Great Gift Choice: our hand warmers is the best gift for winter and other seasons, it is not only a hand warmer, it can also as a power bank, it is very suitable for all kinds of outdoor sports. Various Uses: Relieve symptoms of fatigue, such as back pain, neck aches, arthritith, cramps, headaches, and peri menstrual syndromes, suitable for women, men, elder, girls, boys, youth. Fast Heating: Upgraded Premium Chip of Temperature Control, Dual-Sided Heating, fast heating, hand warmers is your good partner for hunting, skiing, camping. Perfect Style: Perfect design shape, ergonomic Design, very suitable for two-handed holding, safe material, shockproof, anti-scalding, explosion-proof, radiation-free.