Electro Harmonix Nano Soul Preacher

Electro Harmonix Soul Preacher Nano Series, Compressor/ Sustainer, three selectable attacks coupled with silky, long sustains blend in  perfect harmony to create the finest compressor ever built for guitar and bass, dimensions in mm: (WxLxH) 70x115x57, powered by a 9V battery or a 9V DC power supply (barrel type connector - centre negative, not included