The listing, Vintage Bentley Compu-Vision Video Game System has ended.
The Bentley Compu-Vision was apparently marketed in 1983, which would makes it one of the last pong systems ever produced !
The controllers are on wires, so you can remove them from the base and relax; you don't have to stay hunkered over the game unit.
The first switch is a game selector which has the choices "Practice, Squash, Soccer, Tennis". The next button is Game Reset. The next is Ball Angle, whith the choices Steep and Slight. Then Ball Speed with Fast and Slow. Next is Player Size with Small and Large, and the last switch is the power switch. There is no built in speaker--the sound comes through the TV speaker. the unit is 6.5 inches wide, 9.75 inches long, and 1.75 inches tall. It weighs about 1 pound.
Inside of the unit, there are 3 adjustment knobs. one that controls picture size, horizontal placement, and brightness all at once. The second controls the volume, and the third is contrast