Tens Machine Unit with 16 Pads Electrical Massager Pulse Muscle Stimulator Back Body Therapy Pain Relief Uses the physical therapy electrodes Improves your body circulation, relieves your pain and promotes your metabolism Suitable for waist, shoulders, legs, foot massage and physical therapy do the physical therapy for the four parts of your body at the same time 4 therapeutic modes: press, rub, vibration, beat Package included: 1 x Eletronic Massager Machine 1 x 2 Ways Massager Wire 1 x 4 Ways Massager Wire 1 x USB Cable 1 x UK Plug Power Adaptor 16 x Electrode Pads ( 8 Pairs ) 1 x Manual (English) Notice: 1. Correct connect the electrode cord to the pads or slippers 2. ( Important ) Attach both pads to the treatment parts of one person or wear the slippers before turning on the machine, otherwise itll turn offer automatically in 5s. 3. Never put the pad together when turning on. 4. Put the pads on the same side of body. 5. No using the batteries and external power supply at the same time. 6. Read user manual carefully before use and pay attention to the precautions Note: 1.Please allow 1-3cm differences due to manual measurement, thanks. 2.Please understand because of the light irradiation or computer display difference, so I can't guarantee photos and real color is 100 percent the same.