Speco WAT50W 50W 70/25 Volt Wall Plate Volume Control (White)The WAT series of wall mount volume controls offer several options to allow local management of the volume of 70 or 25V speakers. These volume controls come in either a 10W or a 50W model, and have the option of a silver plate with a black knob or a white plate with a white knob. Features: 9 volume steps plus off position Fit in a standard single gang, high cube junction box Set screw wire connection Accepts up to 12 gauge wire Mono sound Either