【Winter Companion, Warm and Healthy】The black mini size makes the hand warmer easier to put in your pocket, the warmth helps relieve menstruation, Raynaud's disease, joint pain, chapped skin, and frostbite. It is the perfect gift for sports lovers mountaineering, hiking, travel, camping, skiing, cycling and more. Give you a free handbag to put in your bag when you feel the heat so as not to burn yourself.

【Double Glide Fast Heating】3 seconds fast heating, the electric hand warmer is made of high-tech aluminum with a smooth stone-like touch. Double-sided heating keeps your hands warm at all times, and the hand warmer automatically turns off when fully charged. Keeps you as warm as spring in the cold winter.

【2 in 1 Hand Warmer/Power Bank】- 2400mAH Fast Hand Warmer and Power Bank 2 in 1. It is not only a hand warmer, it is also an emergency battery backup. It can fully charge common digital devices on the market, and with a USB-C charging port, it can ensure long-term use. Working time up to 8 hours. Continuous heating makes you no longer afraid of cold. Suitable for outdoor sports, camping, skiing, fishing, hiking, travel, etc.

【Superior Performance and Safety】Safety is our top priority, along with multiple protection technologies to keep your equipment away from overvoltage, overcharge, overcurrent and short circuits, etc. We use premium chipsets to control heat levels, fluid-free, flame retardants to ensure product safety.

【SUITABLE FOR DIFFERENT TEMPERATURES】Just press and hold the button for 3 seconds to switch from power bank to hand warmer. 3 different heat levels can be adjusted freely: Low (104~113°F), Medium (113~122°F), High (122~140°F), giving you more choices. 3 indicator lights show the remaining battery level and heating status at any time, blue is charging, red is heater.