Come and Check Our Promo Solutions.VERSATILE: 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, boys, mens, women, ladies, elderly. SAFETY & METAL HAND WARMER: 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. Ensured the security of products. Shockproof, Anti-scald, Anti-skid, Explosion-proof, Radiation-free, Green and Healthy heat transfer. DOUBLE SIDE HEATED & 3 DIFFERENT HEAT SETTINGS: This cool gadget heat up within seconds. There are three different temperatures (104-113 degrees F (40-45 degrees C)), (113-122degrees F (45-50degrees C)), 122-131 degrees F (50-55 degrees C)). Pls check inventory and detailed info with us before placing your orders.