Features: 【PI Heating】PI metal heating film releases far-infrared waves to the subcutaneous tissue layer to drive away cold and effectively relieve menstrual pain. 【Massage and Heating】This pain relief belt has 4 vibration massage modes and 3 levels of heating temperatures (50℃, 55℃, 60℃). You can turn on heating and massage at the same time. 【Constant Temperature】The heating pad adopts NTC temperature control, constant temperature hot compress effectively promotes?blood circulation and metabolism, and stabilize nerves. 【LCD Display】With LCD display, you can check the temperature, massage intensity and battery power at any time. Built-in smart chip, multiple protections make it safe and not overheating. 【Use Time】Built-in 1800mAh rechargeable battery, it can be used continuously for about 4 hours when fully charged. With adjustable waist belt and quiet design, you can use it in bed, work, cooking, indoor or outdoor. Specifications: Material: ABS, plush Color: Pink Size: (Approx)(LxWxH) 18.5x8.5x2.5cm/7.28x3.35x0.98inch Power by: 1 x 1800mAh rechargeable battery (built-in) Temperature range: 50℃, 55℃, 60℃ Use time: 4H Voltage: 5V Package Included: 1 x Menstrual Heating Pad 1 x USB Cable 1 x Manual Note: 1. Due to the light and screen difference, the item's color may be slightly different from the pictures. 2. Please allow 0.5-2 cm differences due to manual measurement.