The Sescom SES-MKP-29 1-Channel Inline Balanced Audio Volume Control is a compact device that can be used anytime, anywhere. It has XLR 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.