The object is a single in the ear headphone with a cable ending in a mini-phono plug.
Charles C. Wehrenberg -- Founder of Solo Zone Publishing for basic "WillBall" concepts, competitive-relaxation game logic, system integration, design, and financing. Brian C. Burke, hired to program the "WillBall" games for Apple II Basic to specifications. Peter Gutkin, hired to construct the "WillBall" table exterior console to specifications. Paul J. Wehrenberg PhD, hired to construct the interior logic circuit controller for the "WillBall" Table to specifications.