TENS Unit Muscle Stimulator Massage Unit Electronic Pulse Massager with 8 Pads 16 Modes Recharg  Product features: 16 programmed massage modes Adjustable 10-60 minute timer Independent dual output design Allows 4 pads to be used at the same time Easy to read animated backlit LCD Display Customizable intensity and mode for each output 20 levels of adjustable intensity/strength (10 per output) Rechargeable internal lithium battery - up to 10 hours of continuous use How e it: Step 1:Connect the wire to the re-usable electrodes pads Step 2:Tear off the plastic sheet from tens electrodes pads Step 3:Clean the skin and Place the pads onto your skin Step 5:Set aside the ON button Step 6:Select the massage mode and intensity Warranty date: 3 years Warm Tips: Avoid touching the pads when the unit is on. Please keep the skin clean and dry before using the tens. not suitable for pregnant women and hypertension patients Package Includes: -1 x Electric Massager -2x Large pair -2x Small pair -1x pads holder -2x Set of Electrode wires -1x USB cable & AC adapter -1x Operating Manual -1x Acupuncture placement point chart