VERSATILE HAND WARMERSRechargeable hand warmer Power bank 2-in-1. It's not hand warmers but also an emergency backup battery. It's easy to carry to anywhere you like or put into any pocket or bag while outdoor sporting, hunting, fishing, hiking, camping, skiing, travel or walking with dog. It is a great gift for girls, kids, boys, men, women and elder. PERFECT GIFT FOR WINTER Hand warmers rechargeable to surprise your parents, kids, friends, family, girlfriend and anyone you cared about. With a for Christmas, Birthday, Thanks Giving Day, Valentines Day and such important festival. This high-tech warmer gift not can make her/his heart warm, but also her/his hands. Ideal Warm Winter Gifts Quick hand warmer Power bank 2-in-1. It's not a little handwarmer but also a emergency backup battery. The utility of electric hand warmers isn't limited to climbing. On ski days, mountain trips, or even just chilly cookouts, hand warmers are a quality-of-life upgrade. rechargeable hand warmer is the best Thanksgiving, Christmas, New Year, birthday and anniversary gift for your family, friends and neighbors. Adjustable Temps, Double-side 3s Quick HeatingOur electric hand warmer can heat up in 3 seconds. There are three different temperatures [104~113 (40~45)], [113~122 (45~50)], 122~140 (50~60)] and the temp is stable. The double-sided heat lasts for a long time and can be used whenever you like. Portable Large Capacity Smaller and more portable than power . Handy carrying anywhere with any pocket or bag while sporting, fishing, hiking, camping, skiing, travel or play . Also a perfect reusable hand warmer solution in cold weather for a or office worker. 1000mAh capacity can give a charge to mainstream digital devices on market. Product Description: Capacity: 1000mAh Input/Output: 5V/2A Charging Time: About 2-3 hours Product Net Weight: about120g Product Size: 8*8cm/3.1*3.1in Working Time: 4-8 hours (The lasting time depends on external temperature and heat settings) Package Includes: 1*1000mAh hand warmer;