Boss DD-3 Digital Delay
A delay pedal used by Prince from the early 1990s to the late 2000s. He may have started to use the DD-3 earlier in the 1980s. It replaced the older Boss DSD-2 Delay/Sampler and was replaced by the Boss DD-6 digital delay.
It was also used by Levi Seacer Jr from the Diamonds and Pearls era onward.