Product description

Digital drum machine, 1985. 15 PCM drum sounds, 64 patterns, individual outputs per voice, DIN sync and MIDI. Powers on and runs; the included third-party power adapter has a slightly unreliable contact.

From the seller:

Vintage Roland TR-707 rhythm composer. Power-on has been confirmed, but the power adapter that comes with the unit is a third-party one and its contact has been slightly unreliable ever since the seller received the machine second-hand.

Beyond that, please buy only with the understanding that this is a used item.