This BOSS wah pedal offers controls for TYPE, WAH RANGE, and DRIVE. The world's first modeling wah pedal, creating a variety of wah effects. The PW-10, utilizing COSM technology, is a wah pedal that includes a diverse range of wah sounds, from vintage models that are now difficult to obtain to original sounds. Furthermore, it features a newly designed infrared pedal for superior operability. Built-in Wah Types: CUSTOM ADVANCED BASS MIX CBY-WAH VO-WAH MO-WAH VOICE UNI-V Built-in Distortion Types: METAL ZONE MUFF FUZZ VINTAGE OD GUV DIST DISTORTION TURBO OD BLUES OD BOOSTER - Brand: BOSS - Type: Effects Pedal - Controls: TYPE, WAH RANGE, DRIVE - Design: Pedal Style - Color: Silver/Black Thank you for viewing. The battery compartment cover is missing. Please be aware of this. This wah pedal allows you to select wah types such as Crybaby, VOX, and Morley wahs, as well as Uni-Vibe and vocoder-like wahs. It produces sounds that are not possible with regular wah pedals. It also has built-in distortion, which is usable. This is a model that is fun to tinker with.