Boss RC-50 Loop Station 7 footswitches for intuitive control; real-time control of playback speed Play up to 3 stereo phrase tracks simultaneously, all synced to an internal or MIDI clock Ultra-long recording time (up to 49 min., mono), 99 patches (3 master loops per patch) Undo/Redo function for recording and overdubbing Center-cancellation feature, flat amplifier simulation feature