Description: If you feel uncomfortable when you have a period or if you suffer from premenstrual tension, this device can help you. Come and have a try. Features: 4 Vibration speeds and 3 temperature modes for you to choose, simple to operate, easy to put it on or take it off. Made of top grade ABS material and the waist belt is elastic and adjustable, suitable for most people. With built-in 1800mAh lithium battery, this machine is USB rechargeable, nice to be used repeatedly. Convenient to use, you can wear it on your belly or back to get a nice massage or reduce pain. Great for many occasions like home and office, works well for both girls and woman. Specification: Type: Heating Pads Material: ABS, Fabric Color: White, Pink ，Optional， Plug Type: USB Plug Charging Voltage: DC 5V Battery Capacity: 1800mAh Charging Time: 2 Hours Working Time: 1.5 Hours Temperature: 50, 55, 60 Item Size: Approx. 18.5 * 8.5 * 2.5cm Package Size: Approx. 22 * 12 * 6cm Package Weight: Approx. 350g Package List: 1 * Weight Loss Machine 1 * USB Charging Cable