A classic dynamic envelope filter featuring two frequencies range modes (OM - HUM), a potentiometer with built in LED light to show the on/off status of the pedal and to set the filter response to the dynamic of the user's performance. Additionally there is a connection to plug in an optional (sold separately) FXP(TM) F-Pedals external expression foot control pedal to manage the filter sensitivity by foot that can generate some really cool and unique kind of wha-wha effects. It is inspired by and dedicated to Flea, bass player of the legendary band Red Hot Chili Peppers. PunQmonk is suitable for guitar, bass or anything else you can connect to it.