The Marshall PEDL-91006 4-Way Footswitch gives compatible Marshall JVM Series amplifiers programmable hands-free control over multiple amp functions from a compact floor controller. Designed for select JVM205, JVM210 and JVM215 models, the 4-button layout supports programmable access to channel switching, mode selection, reverb, master volume and FX loop functions depending on amp configuration. For players using a JVM setup in rehearsals, recording sessions or live performance, the PEDL-91006 simplifies movement between clean, crunch and lead sounds while keeping essential controls accessible at your feet.