Two-speed Temperature Adjustment Hand Warmer Seven-color Ambient Light USB Rechargeable Portable Hand Warmer Features: It can be a hand warmer to warm you up in the cool winter, 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. Safe material design, convenient storage, does not take up space.. Adjustable temperature: There are two temperature for you to control and adjust, the first level is 50 degrees Celsius low temperature, the second level is 60 degrees Celsius constant temperature. Built-in large capacity battery, small size, light weight, easy to carry. Product Description: Product name: Hand warmer ColorPinks Heating temperature: 50~60 Material: ABS, aluminum alloy Size:3.54*2.08*2.67in Weight:0.33lb Includes: 1x hand warmer 1x data cable