True Bypass Pressure Tank Compressor Guitar Effect Pedal By Didamusic, 47. Caline CP-47 "Pressure Tank" Compressor The CP-47 is Caline's new compressor pedal that is perfect for cleaning up your attack and making a single run sting. Used correctly the Compressor is a great addition to any type of music or player. Country Choice "Power Chords" and everything in between. It is a compressor-limiter that allows you to set the maximum output level. The pedal attenuates loud signals and raises soft signals without changing the tone character. Will give the sound of "clean" guitar an expressive percussive character and ennoble the solo with a lingering sustain. Specifications: Material: Aluminum Alloy. Signal Input: 1/4?Monaural Jack. Signal Output: 1/4?Monaural Jack. Power Supply: DC 9V power adapter(center negative) or 9V battery(neither included). Current consumption: 30mA. Item Size: 11.3 * 6.3 * 3.3cm / 4.4 * 2.5 * 1.3in. Item Weight: 232g / 8.2oz. Package Size: 13 * 7.5 * 6cm / 5.1 * 3 * 2.4in. Package Weight: 275g / 9.7oz. Quality new Comprssor from Caline. Adjust the LEVEL, EQ and COMP knobs to get the tone you like. True bypass design. Aluminum alloy casing. Dual power supply options (9V battery or DC 9V power adapter) for ease of use. (Neither is included).