The device is the Gymform Dual Shaper, an electric fitness belt designed for muscle toning and body massage. Function: The device combines two technologies: vibration for massage, and electrical muscle stimulation (EMS) to help tone and exercise muscles. Usage: It is typically used on areas such as the abdomen, waist, buttocks, and back to help with body shaping. Features: It comes with a charger, can be used at home, and may include adhesive pads (Electrodes) to deliver electrical current to the muscles.