The Boss RC-500 combines two loop tracks with a microphone input, stereo instrument inputs and onboard rhythms. It provides 13 hours of stereo recording, 99 phrase memories and 32-bit audio processing. Track faders and three footswitches control performance, while the backlit LCD shows settings and loop status. An XLR microphone input supports phantom power for compatible microphones. USB transfers and backs up WAV loops; MIDI and external-control connections support expanded setups.

Powered by four AA batteries or an optional Boss PSA-series adapter. Boss lists four AA alkaline batteries and four rubber feet as included. The adapter, instruments, microphone, amplifier, additional pedals, external controllers and connection cables shown in images are sold separately.