“The “Shin-ei” Companion “Wah King” pedal made in japan during the early to mid-1970s. The Shin-ei company was known for their quality and unique sounding wah pedals and fuzz boxes. They also built wah pedals and fuzz boxes for Vox.”
“Next to the foot pedal is a four way selector switch with volume, surf, tornado and wah wah. Below the selector switch is a surf and tornado volume switch. Below the surf/tornado volume switch is a siren volume switch. Below the siren volume switch is a siren on/off foot switch.”