Feature: 1. 1. Hand Warmer: You can put this hand warmer in your pocket, hold it in your palm, and travel easily. 2. 2. Material: high-grade non-slip aluminum and ABS material, double-sided heating, smooth hand feeling when using. 3. 3. 3 Gear Temperature Adjustable: Multi gear temperature control function, 8 seconds heating, according to the first gear temperature of 35-40 ° C, according to the second gear temperature of 45-50 ° C, according to the third gear temperature of 55-60 ° C. 4. 4. Convenient Design: Intimate hanging rope design, convenient hanging rope and anti-skid falling, so that you don't have to worry about being busy and forgetting. 5. 5. Fast Charging: Charging is convenient and fast. You can use power bank, notebook, etc. to charge the product. It is forbidden to use it during charging to avoid scalding. Specification: Size: about 8*2.5*6.5cmBattery capacity: 1200 mANet weight: about 115gCharging current: 5V/1AWorking current: 0.4-0.9ARated power: 5-10WHand warmer temperature:First gear: 35-40°C (press once) ±5°CSecond gear: 40-50°C (press twice) ±5°CThird gear: 55-60℃ (press three times) ±5℃ Package List: 1 x Hand Warme Note: Due to the different monitor and light effect,the actual color maybe a slight different from the picture color.Please allow 1-2cm differs due to manual measurement.