Feature: 1. RECHARGEABLE BASE: Electric hand warmer power bank has a built in 6800mAh polymer cell and a rechargeable base that charges as soon as you put it in. 2. LIGHTWEIGHT AND SIMPLE: Hand warmer power bank is made of aluminum alloy with slippy curved lines, which fits your hands well, and is light and simple. 3. TEMPERATURE AND FIRE RESISTANT: Electric hand warmer is made of PC temperature resistant material, ABS fireproof material, aluminum alloy material layers of high temperature flame retardant. 4. CHARGING TIME: Cute pet handwarmer power bank charging time is about 14h in first gear, 10h in second gear and 6h in third gear. 5. 3 SECONDS TO HEAT UP: Rechargeable hand warmer uses space aluminum shell and takes only 3 seconds to heat up. Ambient night light makes you warmer. Specification: Item Type: Hand Warmer Power Bank Material: ABS, Aluminum Alloy Battery Type: Lithium Polymer Battery Battery Capacity: 6800MAH (Shipped With Built In Battery) Charging Method: TYPE C. Package List: 1 x Hand Warmer1 x Charging Cable1 x Conversion Cable1 x Storage Bag1 x Instruction Manual1 x Strap1 x Charging Stand