Item Type: Electric Snoring DeviceMaterial: ABS, stainless steel, electronic componentsProduct Size: 49 x 22 x 16mm / 1.9 x 0.9 x 0.6inBattery Type: Lithium battery 120mAh (built in)Rated Voltage: 3.7VGear: 5 gears1PREVENT SNORING: Automatically and accurately detect snoring through high precision sensors, and massage hypoglossal nerve and mandibular muscles through vibration pulses. 2IMPROVE BREATHING: Different vibration frequencies will promote muscle tightening, regulate breathing rhythm, and make breathing more smoothly. 3SAFE TO USE: Through physical pulse vibration to promote body relaxation, release stress, relieve anxiety and promote deep sleep, which is non invasive. 4COMFORTABLE WEAR: Intelligent automatic intervention, built in AI intelligent chip and large capacity battery, durable and long lasting, comfortable to wear. 5PORTABLE DESIGN: With USB interface, no Internet connection required. Mini size, which is easy to carry. Lanyard design, not easy to lose, easy to wear.1 x Electric Snoring Device1 x Manual1 x USB Cable