In perfect working condition and a great addition to anyone looking for classic guitar tones. No box but will be shipped safe and secure.

The MXR M264 FET Driver is an all-analog overdrive and distortion pedal designed to emulate the creamy, touch-sensitive sustain of a cranked tube amplifier. 

Key Features and Design

• Two-Stage Circuit: Cascades an op-amp gain stage into a Field-Effect Transistor (FET) stage for organic tube-like saturation without fragile real tubes.
• Active EQ: Features independent Hi and Lo boost/cut controls to shape frequencies for single-coils or humbuckers.
• Hi-Cut Switch: Rolls off extreme high-end frequencies to tame harshness at high stage volumes.
• Power: Runs on a single 9V battery or a standard 9V DC power supply. 

Sound and Use Cases

• Tonal Character: Delivers smooth lead sustain reminiscent of David Gilmour or Eric Johnson.
• Pickup Interaction: Can fatten up thin single-coil bridge pickups to sound more like humbuckers.
• Genre Fit: Popular for blues, roots rock, and Americana. Reviews on the Telecaster Guitar Forum note that FET designs offer a warm, touch-sensitive response, though users mention the bass can get slightly loose or fuzzy if pushed too far.