wah-wah pedal
wah-wah pedal is an audio effects unit.
Also recorded as wah pedal.
Overview
Effects unit that mimics the sound of "wah wah".
In detail
wah-wah pedal is an audio effects unit.
Sources
Each source is named with the standing the house places on it, so the evidence can be weighed rather than taken on trust.
reference work · Reputable secondary · Wikipedia
“Wah-wah pedal”, English Wikipedia, consulted as further reading
Consult the sourcereference work · Reputable secondary · Wikidata
Wikidata, structured authority record Q264300: wah-wah pedal
Consult the source