Check the listing for details. Zoom RhythmTrak RT-323 Drum Machine Clear Blue + AC Adapter TESTED WORKS. Condition: Used, Made in Japan. Listed at 174.98 USD. Drum machine has been tested with ac adapter and works as it should! The Zoom RhythmTrak RT-323 Drum Machine is a reliable electronic drum machine made by Zoom in Japan. This unit is tested and works perfectly with the included AC adapter, providing musicians with a versatile and high-quality drum sound for their performances or practice sessions. The compact size of the Zoom RhythmTrak RT-323 makes it easy to transport and set up for various music production settings. With its user-friendly interface and realistic sound capabilities, this drum machine is a valuable tool for both beginner and experienced musicians.