This Game Ready AC Adapter is a terrific addition to or replacement for AC Adapter that came with the Game Ready Control Unit. Should a facility lose, misplace or damage their original Adapter, this is the ideal replacement. Simply plug into a proper outlet and plug the other end into the Game Ready Control Unit and therapy is ready to begin. Please note, this is the AC Adapter only. Wraps, control unit and all other Game Ready accessories are available separately. In addition to being needed to power the control unit, the AC Adapter is also needed to charge the Game Ready Battery Pack (available separately). When the adapter is plugged in to both an outlet and the Control Unit, the power indicator light on the Control Unit will turn orange. Once you turn on the Control Unit, the light will turn from orange to green. Easily fits in both the Game Ready Carry Bag and Game Ready Wrap Bag. Compatible with both 110 and 220 volt outlets. It is cautioned to not use any AC adapter on Game Ready products other than a Game Ready AC Adapter.