A Micro Vs. System (Punch Out!!) handheld c.1988 (serial number V0663107) Originally released in 1984 under the name of Boxing, it was reissued under the name of Punch Out!! 

in conjunction with its release on the home consoles in 1988 

Includes the box from the same game series but for an associated game (Punch Out!! in the box for Donkey Kong Hockey)

Fully working, both controllers working and winding. 

Great little game only increasing in value