Information on this large beige motor w/battery box?
It's the main module from Record and Play (set 4095):



This part was only included in this set released in 2003. The part contains several motors and some electronics that allow you to record motor movements and then play them back.



Pressing the red button would let you record movements for a maximun of 20 seconds by adjusting the motors and the green button would play back the last recorded movement.