PAIN RELIEF: TechCare Massager contracts and releases the muscles with 24 different modes, gets the knots out and will give you all the benefits of a massage. FEATURES : 24 preprogrammed massage modes. Tapping, Acupuncture, Deep Tissue, Foot, Cupping, Combo. You can adjust the session time by using " T " button, each click will add 20 minutes to the session. Rechargeable internal lithium battery. Up to 20 hours FEATURES: 20 levels of adjustable strength intensity, Please use " + " and " - " button to adjust intensity. Techcare Massager offers Lifetime Warranty and Hassle Free Return. WHAT IS INCLUDED ? : 1 Controller, 4 Electrodes ( 2 large 2 medium Pads ), 2 Small Electrodes ( Pads ), 2 Electrodes Cables, Carrying Bag, User's Manual, Usb Charger, 1 Electrode Pad and Wire Holder, 1 Treatment Points Chart they all come with LI