Boss FT-2 dynamic filter made in Japan. A great autowah and a collectors piece only produced from 1986-1989. Works excellently without problem.

Condition is really good, only very small dings and a bit of glue on the back label left from velcro.

The pedal processes the input signal by varying the filter cutoff frequency in response to picking dynamics, creating a sweep effect that follows the player's attack. This dynamic filtering can alter harmonic content without affecting the fundamental tone, allowing both subtle tonal shaping and pronounced wah-like modulation.

A central feature of the FT-2 is its cutoff frequency control, which determines the operating range of the filter and defines the tonal character of the effect. The Q control adjusts the resonance peak of the filter, shaping the intensity and sharpness of the sweep. Sensitivity determines how strongly the envelope responds to input level, allowing for adjustments to accommodate different playing styles and pickup outputs. The pedal includes selectable modes for upward or downward envelope response, as well as a manual mode that disables the envelope follower. In manual mode, the unit functions as a fixed filter with EQ-like behavior.

All in all, it's an awesome pedal that you should get ;D