Feature: 1. Three Levels Temperature: There are three levels of temperature, the first level is 45℃: daily warming the uterus, the second level is 55℃: menstrual care, and the third level is 65℃: dysmenorrhea care. 2. Rapid Heating: The electric heating uterus belt has excellent performance, fast heat in three seconds, uniform heat dissipation, and lasting moisture retention. 3. Function: The metal heating film is energized to release far infrared waves to the subcutaneous tissue layer to drive away the cold and effectively relieve menstrual pain. 4. Multi Frequency Vibration Massage: Using sophisticated production technology, this menstrual heating belt multi frequency vibration massage can regulate the body in multiple directions. 5. Built in Battery: Built in high capacity polymer lithium battery, can realize cordless restraint use, and can be used for a long time. How to Use: Double click twice to turn on, and click to switch temperature Specification: Item Type: Electric Heating Uterus Belt Material: ABS, Deer Velvet Rated Power: 10W Battery Parameters: 3.7V Lithium Battery, 1800mAh (Battery Included) Power Supply Voltage: 5V Level Position: 3 Levels Heating Temperature: 45, 55, 65 Body Care Parts: Knees, Shoulders, Waist, Legs Features: USB Charging Hot Compress Vibration Massage Weight: Approx. 386g / 13.6oz Package List: 1 x Electric Heating Uterus Belt (Battery Included)1 x USB Line 1 x Chinese and English User Manual