Multifunctional Hand Warmers with Power Bank Function Winter Double Side Pocket Hand Warmer Black

Features：
Adjustable Temperature：You can adjust the temperature to suit yourself, making this winter warm and different.
Portable Hand Warmer: Cobblestone hand warmer and power bank (when needed) 2-in-1. It can be put it any pockets or bags while you're exercising, fishing, hiking, camping and skiing.
Safer To Use: High-tech aircraft grade aluminum, ABS material, environmentally friendly polymer batteries.
Hand-held Warmth: Double-sided heating and 3 temperature settings: 107F (42C) / 118F (48C) / 131F (55C). Warm your hands in 2 seconds. Easily turn the warmth on and off.
Choose from four colors and choose your favorite one.