MXR Studio Comp Bundle PS A1@+*Bundle offer comprising*, MXR M76 Studio Compressor, Effect Pedal for Electric Guitar, Compressor, Controls for Release, Attack, Ratio, Input and Output, Bypass footswitch, True bypass, Status LED, 3-Colour LED gain-reduction display, 100% Analog dry path, 6.3 mm mono jack input/output, Aluminium housing, Operation via 9 V battery or power supply unit (not included, suitable PSU available under article nr #409939#), Power consumption: 19 mA, Rockboard Pedalsafe Type A1 universal, Protective Cover, Suitable for Electro Harmonix Nano series and MXR effect pedals with standard housing with 1 input and 1 output jack, Suitable for most effect pedals with housing dimensions of approx. 110 x 60 x 32 mm, With base plate for mounting on pedalboards of any manufacturer, Protects effect pedals from dirt and weather influences, Protects the settings from unintentional adjustment, Mounts effect pedals securely on almost all pedalboards, No permanent modifications required, Includes universal pedal mounting plate type A and silicone adhesive pad