The customer comes first! If you have any dissatisfaction with the product, we support full refund within 30 days! Intelligent Control Hand Warmer Rechargeable 2-in-1 Portable Hand Warmer Features: 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 rechargeable battery for your cell phone, it can be a massage To 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 3600mah, 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 is 40 degrees Celsius low temperature, the second is 50 degrees Celsius constant temperature, and the third is 60 degrees Celsius high temperature. You can adjust the different temperatures between them as needed. Product Description: Product name: Hand warmer Color:Green,White Heating temperature: 40℃~60℃ Material: ABS, aluminum alloy Battery capacity: 3600 mAh Viflosae Intelligent Control Hand Warmer Rechargeable 2-in-1 Portable Hand Warmer Electronics Gadgets Up to 50% Off 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 rechargeable battery for your cell phone, it can be a massage To 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 3600mah, 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.