Electrical waist and abdomen stimulator: • 6 vibration modes and 15 adjustable intensity levels. •It uses EPS and EMS low-frequency technology, muscle stimulation to promote circulation and relax the waist, abdomen and back. •Works with 2 AAA 1.5V batteries (not included). •Flexible and non-slip design, portable and safe. Adjustable waist from 76 to 110cm. •Digital information display, easy to operate and use. •Includes 8 gel pads of 8x6cm. Power supply: 2 AAA 1.5V batteries Output current: 0-45mA Auto shut-off: 15 minutes Technology: EMS microcurrent stimulation Operating temperature: 10-40°C ABS, breathable fabric + spandex, PVC, and metal alloy.