The Hoveround Teknique XHD is specially made for larger heavier people with a wider seat than a normal hoveround, armrests that adjust out and a max passenger weight of 450lbs. It has upgraded batteries to power the bigger more powerful upgraded electric motors and has a range of 15 miles at 4 miles an hour. This chair retails between $11,000 and $12,000 new (not a typo) and is being sold used on ebay right now from $1,000 to $1,400 ( see pictures). I'm asking only $650 because I'd like to get rid of it and no longer have the need for it. Mechanically its clean, runs great and holds a charge all day. Its currently set up for left handed control but Im happy to switch it to right handed control if needed.