Product Parameters: Length: Approx. 19Cm/7.5Inch Power: 12W Ultrasound: 1Mhz Input Voltage: 100-240V Output Voltage: Dc 15V, 800Ma Package Contents: 1 X Main Unit 1 X Adpater (Eu Plug) 1 X Wire 4 X Electrode Pads Product Description: 1 .Infrared Function Infrared Rays Can Penetrate Deep Skin And Subcutaneous Tissues. The Generated Wavelength Is Very Close To The Vibration Frequency Of Body Cell Molecules, Through Resonance Absorption, The Friction Between Molecules Generates Heat, Thereby Raising The Temperature Of Deep Subcutaneous Tissues And Accelerating Blood Circulation. 2. Ems Adopts The Principle That It Will Consume The Fat When The Muscles Are Vibrated, And Adpots The Periodic Changes In Current, With The Force Therapy Repeated To Achieve The Effect Of Weight Loss, Massaging And Relaxing. When Muscles Are Stimulated By Low-Frequency Current, It Causes Muscle Vibration Within Certain Amplitude. The Movement Of The Muscles That Is Not Controlled By The Will Is Called Passive Movement. Precautions: 1. When Using The Ems Electrode Sheet Function, Please Do Not Use Other Functions To Avoid A Small Electric Shock Feeling. 2. Ems Electrode Pieces Must Be Attached To The Same Person With Positive And Negative. 3. Use The Ems Function To Gradually Adjust The Lowest Level To The Maximum Level. 4. Ems Electrode Pieces Are Forbidden To Use In The Eyes, Forehead, Heart, Chest.