WHY It's Better: Compact Portable. SAY No..to TV Remote Control Size Devices That Make Portable Therapy Impossible. The iReliev System is perfect for therapy on the go. Included is iReliev's... EZ Carry Clip Holster. Wear Concealed AND Under Your Shirt.. Features: Dual Channel Design, which means you can use with 2 Pads for Smaller Body Parts or 4 For Large Body Parts or Multiple Body Parts. The LCD Display Shows Program Modes P1-P8, Power Level, Battery Life, a 5-60 Minute Adjustable Timer, 25 levels of intensity which can be set independently on each channel and finally an auto-lock out feature while on go. What IS Tens Stands for Transcutaneous Electrical Nerve Stimulation - a safe, non-invasive, drug free method of pain relief used by Physical Therapists prescribed Doctors for over 30 years. The iReliev Bundle delivers low-voltage pulses to the skin to stimulate nerve fibers to help block the pain signal to your brain. Also studies indicate Tens may also increase natural endorphins--a natural pain r