VOL Attenuator is a passive attenuator that allows you to instantly switch to a different volume.Features:Lightweight、 portable and full metal shell.Single knob control to adjust the degree of attenuator.Using attenuator to lower level for a clean sound.Using the Signal Pad anywhere in your effects chain.The light flashing when working.True bypass in order to protect signal integrity when the pedal is not engaged.Foot-switch toggle controlling on/off condition.Specifications:Material: Zinc-Aluminium AlloyColor: BlackModel: VOLInput Impedance: 1M ohmOutput Impedance: 1K ohmWorking Current: 20mAPower Supply: 9V DC Charger (Not included)Item Size: 9.2 * 3.8 * 3.6cm / 3.6 * 1.5 * 1.4inItem Weight: 122g / 4.3ozPackage Size: 11 * 6 * 6cm / 4.3 * 2.4 * 2.4inPackage Weight: 156g / 5.5ozPackage List:1 * Guitar Effect Pedal