“Purvs” is true-bypass, analog, handmade silicon fuzz pedal made by Jānis Altmanis (Jānis.lv) from Latvia. Originally designed for guitar but will work great with bass guitar and other signal source too.“Purvs” in translation from Latvian language means “Swamp”.Controls:Skaļums – The pedals master volumeJauda – The amount of fuzzSwitch – Two tone options- LED: Red- Power supply: 9V regular center negative power adapter (Boss type). Adapter not included. You can’t put 9V battery in this pedal.- True-bypass- Components through-hole (no SMD)- Protection against polarity inversion- Jacks for input and output: 6.3mmEach and every Jānis.lv pedal is soldered, wired, assembled and finished by hand in Latvia. Letters are punched in enclosure by steel letters in Latvian language.Free tracked worldwide shipping!