Fast three-second fast constant temperature: The graphene heating chip adopts the latest technology to quickly release heat and provide a stable temperature for the body. Improve blood circulation, relax muscles, suitable for warming stomach, abdomen and waist. Three levels of temperature and five levels of vibration: one-touch operation. Long press the switch for 3 seconds on/off, quickly press the temperature switch to switch the temperature mode, 65C (red), 55C (white) and 45C (blue). Quickly press the vibration switch to switch to 5 different vibration frequencies (one-button model only has heating function, double-button model has dual functions of heating and vibration) Waterproof and washable: The built-in graphene heating chip is wrapped in a waterproof TPU layer, which provides excellent insulation and waterproof performance, no risk of electric shock, can be washed without disassembly, and is easy to clean. Allow to air dry before use. Portable and easy to use: Ultra-thin and lightweight, the upper body has almost no feeling and can move freely. Universal USB interface, which can be powered by power bank, laptop, USB adapter, etc. (Please note: Power is required for use, no power storage function, and mobile power is not included.) PERFECT GIFT FOR WOMEN: The belt is adjustable and can be adjusted freely to fit your belly firmly and fit all women's waist sizes. The perfect gift for women, it can help any girl or woman get rid of uterine or lower back and abdominal pain. Size: 29.5*11cm Color: pink Packing list: 1pcs