Pearl SY-1 Syncussion
The Pearl SY-1 Syncussion is an electronic percussion instrument used by Bobby Z. The SY-1 consists of a sound module and a set of toms that trigger the synthesizer. Bobby Z first used the SY-1 on the Controversy tour, and they became part of Bobby's electronic kit on the 1999, Purple Rain and Parade tours.
Prince also played the SY-1 when he played Bobby's kit live.