Features 1. Magnetic Hand Warmer: Portable rechargeable hand warmers set contains two stylish and sophisticated hand warmers, you can heat your hands at the same time, or share one with your family and friends. Smooth and comfortable to the touch, slim and light enough to fit in your pocket or glove. 2. Superior Heating Performances: Our electric hand warmers rechargeable are equipped with a fast heating element that heats both sides quickly in just 3 seconds. 3 levels of temperature(40, 50, 60) making it the perfect winter warming solution. 3. Large Capacity Battery: The chargeable hand warmer is equipped with a larger 10000mAh lithium polymer battery that provides up to 12 hours of heating time and is surrounded by four indicators that help show the remaining power. It can also be used as a mobile power source to charge your electronic devices at any time. 4. Excellent Safety: The electric hand warmer has a built-in intelligent temperature control chip, heat resistant casing, and various protection technologies to avoid over-voltage, overcharge, overload, and short circuits, ensuring the safe use of the USB portable hand warmer. 5. Perfect Winter Gift: The rechargeable hand warmer is a must-have to get through the cold winter months and is a warm gift for friends, family, boyfriends, and girlfriends to keep their hands warm, whether they are at the office or camping, skiing or hunting. Specification Material: ABS, Aluminium alloy Color: Grey, Pink, Green, Orange Size: 11 x 7 x 2 cm Weight: 180 g Voltage: 5V/2A Wattage: 3.6 W Battery capacity: 10000 mA Working time: 12 hours Charging time: 3-6 hors Package Include: 2 Hand Warmers