the power-saving technology of the device, it will vibrate more when pressed against the body part. Pain And Cramps Due To Muscle Injury, Sprains, Strains >>Help The Flow Of edema fluid in the swollen area. Relax Thickened Connective Tissues And Fascias >>Increase Joint Mobility >>Eliminate Muscle Manual measurement; you will have a 1-3 cm Error. Due the difference between different monitors, please understand that the picture may not reflect the actual colour of the item Returns are not acceptable for any defects or damage