The Sescom SES-MKP-27 Professional Stereo 3.5mm Volume Control is a compact device that can be used anytime, anywhere. It has stereo 3.5mm input and output connectors, making it easy to place into your audio signal path. The unit has a durable black anodized extruded aluminum construction for lasting durability. The large volume control is easy-to-use and lets you make quick volume adjustments. Touch-tab fastener material is included for fast installation and countless mounting options.