The Fusion Apollo SRX400 marine zone stereo is the perfect companion for the Fusion Apollo RA770 combining premium design and superior sound in a compact form factor. With built-in Wi-Fi and Apple AirPlay 2, Digital Signal Processing (DSP) technology, PartyBus -Network capabilities and Fusion-Link integration. Features: Compact Marine Wi-Fi Stereo Enjoy seamless high-quality audio streaming with built-in Wi-Fi and Apple AirPlay 2. Wi-Fi audio streaming delivers a faster data transfer rate and superior range in comparison with BLUETOOTH . Built-in Digital Signal Processing (DSP) A technically superior listening experience made simple, DSP optimizes the audio signal for superior sound quality in every listening environment. Custom audio profiles (including speaker, subwoofer, amplifier and environment) can be setup for each zone on your boat using the Fusion-Link app on your compatible smart device. PartyBus -Network Technology Enjoy the freedom of musical choice across the entire boat by connecting multiple Apollo Series stereos together using Ethernet. An intuitive user experience allows you to control stereo grouping (play the same audio source across multiple stereos in sync), volume, power options and more. Optically Bonded Color LCD Display Brilliant 2.7" optically bonded color LCD is integrated into the black front face and supports album art and track information. Fusion-Link A widely adopted protocol for on-water audio integration and control. Allows you to control your audio from a compatible multifunction display (MFD) or smart device Over-the-air Software Updates Enjoy the convenience of wireless software updates from the Fusion-Link app on your compatible smart device. The Apollo SRX400 is intelligently simple and easy to keep up to date. Advanced Source Options Take advantage of the advanced source options available including Apple AirPlay 2 , BLUETOOTH , Universal Plug and Play (UPnP) and AM/FM radio. True-Marine Design The Apollo SRX400 has an IPX6 and IPX7 water-resistant front panel and has been tested to a high level of protection against salt fog, temperature, vibration and UV. Designed to last season after season, the SRX400 comes with a 3-year warranty.