Detail 01
Dynamic (envelope) wah, not a treadle
The filter sweep follows how hard you pick. Playing dynamics become the control, so your right hand sets the motion.

Independent shopping perspective
An envelope-controlled wah that opens with pick attack instead of a treadle. For funk and rock players who want auto-wah without floor space for a pedal rocker.

Strong match
Consider the trade-offs
What matters in use
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 01
The filter sweep follows how hard you pick. Playing dynamics become the control, so your right hand sets the motion.
Detail 02
Standard BOSS compact size. Fits normal pedalboard spacing and takes far less room than a rocker-style wah.
Detail 03
Light enough that it won't anchor a board, but the metal chassis handles being stepped on.
Detail 04
Same enclosure and switch design used across the BOSS compact line, so mounting and board layout are predictable.
Detail 05
Sits in entry-to-mid pedal territory, so it's a reasonable first filter effect rather than a boutique purchase.
Final check
Product questions
Straight answers to the questions shoppers most often ask about this product.
No. A regular wah uses a foot treadle you rock manually. This one sweeps automatically based on how hard you pick, leaving both feet free.
It's built as a guitar effects pedal. Envelope filters do respond to bass signal, but this one is voiced and specified for guitar.
BOSS compact pedals accept a 9V battery, but neither battery nor adapter ships with the pedal. Plan on buying a power supply.
Before distortion usually gives the most defined sweep, since the filter reads your raw pick dynamics rather than a compressed, saturated signal.
Reference
The complete catalog record, organized around the decisions musicians make when comparing gear.