Hofner Club Bass [H500/2-0] unknown and the oval button makes

and the oval button makes it easy to adjust the length

you can control it like a wah pedal or talking pedal

The switch on the side allows you to set the pedal's activation state (on/bypass)

Pickup: Humbucking PU x 2

Hofner Club Bass [H500/2-0] unknown and the oval button makesA German made Club Bass that's popular with players! The 500 2 Club Bass was introduced in 1964 as a replacement for the increasingly popular 500 1 Violin Bass. The 500 2 targeted players who wanted Hofner's unique bass sound but also desired a different look from the Violin Bass, which was strongly associated with Paul McCartney. The 500 2 Club Bass, which combines the body of a Club guitar (produced since 1954) with the neck and assembly of a violin