bunny box
n.— «Today there are more sophisticated ways of honing your flying technique. Referred to as a “bunny box,” this radio control attaches to an instructor’s via a USB chord, allowing the instructor an over-riding capability in case of an emergency.» —“Looking for New Skies” by Christopher M. Staten Loudoun Connection (Va.) Aug. 11, 2005. (source: Double-Tongued Dictionary)