This is a TC Electronic Ditto Looper pedal. It's the simple to use looper that's the go-to for the likes of Paul Gilbert, Joe Perry, Andy Summers, and tons of others. It features true bypass switching. It's super easy to use. Tap the switch once to start recording the loop. Tap it again to stop recording. Tap it again to overdub on the loop. Tap it twice to stop playback. Hold down the switch to delete the loop. The single knob adjusts the volume for the playback of the loop.

This Ditto is in good condition. The electronics work perfectly. The pots, jacks and stomp switch are all clean and quiet. You can power this a Boss PSA-style ac/dc adapter, or your standard 9-volt pedalboard power supply.