By Empi Transcutaneous Electrical Nerve Stimulator Pain relief TENS stimulation encourages the body to produce national natural pain killers, I.e. endorphins 12 program options Includes: EPIX VT TENS device User manual 2 packages of reusable electrodes and lead wires - one opened, one unopened Rechargeable battery 110V/60Hz battery charger Belt clip Ripstop nylon case w/ zipper Electrodes are past expiration date, but still functioning