Magnetic Split Hand Warmer USB Rechargeable Heater Portable Mini Hand Warmer Pocket Charger Power Power Bank Winter Warmer Features: 3 in 1 hand warmer: The small hand warmer has four functions and has a wide range of applications. It can be a hand warmer to warm you up in the cool winter, it can be a mobile power bank to charge your mobile phone and other devices, it can be a massage To relieve pain caused by fatigue. Fast double-sided heating: Long press for 3 seconds to wake up the hand warmer heating function, no need to wait for a long time. In addition, it also has a double-sided heating mode and a heating power of 5-10w, which will more heat to warm you on cool days. Mobile power supply: Built-in high-capacity battery up to 2500mah, small size and light weight, can be used as a portable charging power source, allowing you to conveniently charge your mobile phone for camping, hiking, climbing, and picnic. Smart LED digital display: The LED display will clearly show you the current temperature and the remaining power at different temperature , without you having to the current temperature and remaining power. Adjustable temperature: There are three temperature for you to control and adjust, the first level is 40 degrees Celsius low temperature, the second level is 50 degrees Celsius constant temperature, and the third level is 60 degrees Celsius high temperature. You can adjust the different temperatures between them as needed. Magnetic absorption split type design, double warmth. Convenient storage, does not take up space. Product Description: Product name: Hand warmer Battery capacity: 2500mah Heating temperature: 40~60 Material: ABS, aluminum alloy Size:2.04*3.54in Weight:0.57lb Includes: 2x hand warmer 1x data cable 1x storage bag 1x lanyard