Quick hand warmer & Power bank 2-in-1,It’s not only a little handwarmer but also a emergency backup battery,Great gift for girls, kids, youth, mens, women, elder. Cute hand warmers.Safety is top-of-mind, this mini hand warmer have built-in intelligent protection system is provided with safeguard of power on, short circuit and over loading, etc. This small hand warmer made of premium aluminum and ABS,Eco-friendly lithium ion battery. This cool gadget heat up within seconds,There are three different temperatures,it reaches the temperature you want very quickly,3 indicator lights keep you informed of the remaining battery and heating status.It is a nice size to hold and feels smooth in your hands.