This is a discontinued and hard-to-find drive pedal from Tech21, famous for their SANSAMP series. It's used as a secret weapon by top professionals like Hiroki Isobe of Alexandros and Yusuke Takeda of RADWIMPS. The 3-band EQ is very effective, allowing for a wide range of sounds, from aggressive, scooped distortion to those emphasizing the mids, and enabling unique sound creation. Raising the R.I.P. knob adds an envelope filter-like effect. Listening to sound demos on YouTube is the best way to understand its appeal. Functionality has been confirmed. The battery cover on the back of the unit is missing. The item includes the pedal only.