TENS technology (Transcutaneous Electrical Nerve Stimulation) provides temporary safe, drug free relief from back pain, sore joints, sporting injuries and period pain.Includes EMS (Electrical muscle Stimulation) to help tone muscle groups and massage functions for the soothing relief of tired muscles and aching joints.1 x Boots Pharmaceuticals TENS Digital Pain Relief Unit1 x Belt Clip2 x Connecting cables4 x Adhesive electrodes3 x 1.5V AAA batteries (LR03)1 x storage pouch44 different pre-programmed applications.6 customisable programs15 intensitiesIntergrated belt clipStorage pouch