
via this auction
"Features:
* LCD display with light
* Separate volume sliders for instruments
* Stereo output
* Holds up to 48 patterns (3 groups of 16) and two songs
* DIN Sync In/Out as well as Tom trigger outs (like the Roland TR606) for external control and triggering
* Runs on AC adapter or 4 "C" batteries
* Lightweight and portable

* Original box and packing material
* Carry bag
History:
Fantastic analogue drum machine from 1982, the KPR-77 was Korg's answer to the Roland TR-606 drum machine. Like the TR606, the KPR77 is an analog drum machine."