Boss PW-3 Wah Pedal, Wah Pedal, Space-saving design, Two switchable sound modes: Rich mode prevents the loss of bass and definition, vintage mode is for the classic Wah sound, Operates quietly, Adjustable pedal voltage, Robust aluminium-high pressure die casting, On/Off LEDs on both sides of the pedal, Connections: Input, Output, DC in socket, Power supply with 9V battery or 9 Volt power supply (not included, available under Article Nr #409939#), Dimensions (W x H x D): 80 x 58 x 192 mm, Weight: 800 g