The Fusion MS-NRX50 Single Stereo Volume Controller provides simple and convenient audio control at the helm. Designed for marine environments, this compact controller mounts directly to your dash and connects to your boats NMEA 2000 network. A large rotary knob allows you to adjust the volume across all zones of a connected stereo system, while a push-button function lets you quickly play or pause your music. Built with an IPX7 water rating, the MS-NRX50 is engineered to withstand life on the water while delivering effortless control of your onboard audio. Features:• Large rotary knob for easy volume adjustment• Controls all audio zones of a single stereo• Push-button play and pause functionality• Connects to NMEA 2000 network• Compact front-mount design• Requires 1.5" mounting hole• IPX7-rated for marine durabilitySpecs:• Dimensions (H x W x D): 2.35" x 2.35" x 2.04"• Water Rating: IPX7• Power Input: 10.8â16 VDC• • NMEA 2000 LEN: 2 (100 mA)• NMEA 2000 Ports: 1 (micro-C connector)• Warranty: 1 yearWhats included: -Two mounting screws -Documentation IPX7 waterproof rating NMEA 2000 network compatible 1.5"" dash-mount installation