Compact, space-saving form factor allows for installation in out-of-way places such as storage lockers, inside helm consoles and other concealed compartments.Control Method:Remote Designed to work seamlessly with compatible Garmin multifunction displays (MFDs) or Apollo ERX400 wired remotes to simplify dash space Built-in Digital Signal Processing (DSP) technology with custom audio profiles for superior quality audio Enjoy the freedom of musical choice with Fusion PartyBus-Network technology (stereo grouping, volume control, power options and home zone) Fusion True-Marine design and a 3-year limited consumer warranty