1、DRIVE AWAY COLD: The metal heating film is energized to release far infrared waves to the subcutaneous tissue layer to drive away the cold and effectively reduce menstrual pain, very practical 2、THREE LEVEL TEMPERATURE: There are three levels of temperature, the first level is 45℃ for daily warming, the second level is 55℃ menstrual care, and the third level is 65℃ dysmenorrhea care 3、LONG LASTING: Three seconds of heat, soft fiber fabric jacket bring uniform heat dissipation and long lasting moisturizing 4、MULTI FREQUENCY VIBRATION MASSAGE: Three step temperature regulating hot compress, multi frequency vibration massage, realize multi directional body conditioning, more useful 5、HIGH CAPACITY POLYMER LITHIUM BATTERY: Built in high capacity polymer lithium battery, bid farewell to bulky power banks, and realize wireless restraint use, very convenient Item Type: Warm Palace Belt Material: ABS+Soft Fiber Fabric Rated Power: 10W Battery Parameters: 3.7V lithium battery, 1800mAh (built in) Power Supply Voltage: 5V Level Position: 3 Levels Heating Temperature: 45℃, 55℃, 65℃ Charging Time: 1~2 hours Working Environment: 5-40℃ Body Care Parts: Knee pads, shoulder pads, waist pads, leg pads Features: USB charging hot compress vibration massage Weight: Weight: 319 g / 11.3 oz(approx.) 1 x Warm Palace Belt 1 x USB Cable 1 x User Manual