Golden's SmartTek® is a patented self-diagnostic technology that is standard on all Golden lift chairs. SmartTek notifies the user of an electrical malfunction with their chair, helping technicians diagnose the issue quickly and easily over the phone, saving valuable repair time! SmartTek gives the repair technician a better understanding of what parts they will need to repair the chair before they even leave the office. Features: Battery backup system brings chair from reclined to the seated position in the event of a power outage (batteries not included) USB charging port Side pocket for extra storage Headrest cover included Non-skid leg levelers for extra stability and safety