Japanese-made guitar effector equipped with volume, gain, and bright switch. - Model Name: GlossyBooster Clean Booster HMPF Geek FX Handmade Pedal Factory A clone of the exoticEP booster model. It adds gloss and thickness to the sound. The internal dip switch has been brought out externally for easy setting. 9v 18v Boost Switch Power supply is 9v (Can be boosted with a 9v power supply) Switch the 9v/18v setting after turning the effect off. BASS off / BRIGHT on is equivalent to flat EQ. I have never experienced any noise while using it. - Functions: Volume, Gain, Bright Switch - Country of Manufacture: Made in Japan - Connection Terminals: Input, Output Terminals - Power Supply: 9V 18V Thank you for viewing.