Hign-concerned Chemical : None Number of Pieces : One Unit Pressure Range : 4-20 cmH2O Model Number : Sleep Aid Material : Handheld Sleep Device Work Mode : CPAP Type : Sleep Aids Brand Name : Hailicare Origin : Mainland China Item Type : Sleep & Snoring Product material: : ABS plastic+stainless steel process Gear : 15 gear adjustment Battery capacity : 200MA Features 1.This sleep instrument uses EMS micro-current to help you fall asleep easily and quickly, reduce stress and get better sleep quality. 2.Pure physical improvement of sleep quality, non-drugs, no chemicals added, no side effects, no dependence, no harm to the body.3.Two modes (sleep mode/excitement mode) and the intensity of 15 gears can be adjusted to meet the needs of different people.4.It is very suitable for people who are stressed, easily anxious and depressed, have difficulty falling asleep and easily wake up in the middle of the night. Specifications Material: ABS plastic+stainless steel processColor: greenBattery capacity: 300mAhCharging voltage: DC5.0V/1AOperating current: 0.005ARated power: 0.3WRated current: 200MAGear: 15th gearMode: Sleep mode, excitement mode.Net weight: 0.027KGProduct dimensions: 6.5*4*3.5CMPacking size: 10.4*9.3*4.1CM Package Included: 1* Sleeping instrument1* USB Charging Cable1* English User Manual