1、Pocket size, easy to carry, warm your hands and charge your phone when you go out in cold winter. 2、Rapidly warm up in 5 second, 10000mAh large capacity, continuously warm your hands for 8 hours, charge your phone for about 2 times. 3、Quick heating hand warmer is made of high quality PC+ aluminum alloy + silicone material, grace appearance and smooth surface. 4、Good gifts for mom, girlfriend, best friend, etc. great for winter outdoor sports, camping, skiing, cycling, climbing. 5、Using new technology to protect the core, automatic power‑off protection, prevent overcharging, and use it more safely. 1 x Hand Warmer1 x Data Cable1 x Instruction Manual1 x Lanyard1 x Cloth Bag Condition: 100% Brand NewItem Type: Hand WarmerMaterial: PC+ Aluminum Alloy + SiliconeColor: As shown in the pictureSize: Approx. 74x30x114mm / 2.9x 1.2x 4.5in Weight: Approx.396g/14ozBattery: 10000mAh polymer batteryInput Voltage: DC5V/2AOutput: DC5V/2AHeating Power: 7-10WTemperature: 50℃-60℃ adjustableUse Time: About 8HFunction: Dual-use hand warmer + power bank, with digital display (display temperature and battery power)