Excellent reverb algorithms (6 variations including reverse!), plus delay and chorus. 1/2 rackspace, 9v wall wart PS included. Fully cleaned and tested, all OK. Stereo 1/4" in/out, midi in/out/switchable, 1/4" footswitch jack. Input, mix output, decay, and delay knobs. Light studio use, #9 condition. With manual.