Display: 2.8? DOT Matrix display IP protection: IP66 Supply Voltage: 10.5 ? 16 Vdc Peak Musical Output Power: 4 x 50 Watts Radio bands: FM AM Bluetooth: 2.1+EDR / Music streaming A2DP/AVRCP Mounting Hole: 89.5mm (3.52") Operating Temp. Range 0 to 50 C (32 to 122 F) Datasheet Pure Marine Design The HMR 10 features IP66 protection grade ASTM-D4329 standards for UV resistance and ASTM-B117 for salt fog operability giving you unstopped pleasure season after season. Pefect Sound Onboard with Gauge-Style Installation With two pairs of high quality stereo output a screen readable at all times and a generous marine-grade control panel it will be a breeze to control your favorite playlist on USB or Bluetooth streaming for maximum fun in water. IP66 Hertz Pure Marine Certified Product stamp featuring the IP66 protection grade ASTM-D4329 standards for UV resistance and ASTM-B117 for salt fog operability. Bluetooth Bluetooth streaming and control 3 Preset EQ Equalizer featuring 3 presets (Classic / Pop / Rock) USB2.0 USB Playback html-body [data-pb-style="639072563D36A"]{justify-content: flex-start; display: flex; flex-direction: column; background-position: left top; background-size: cover; background-repeat: no-repeat; background-attachment: scroll; border-style: none; border-width: 1px; border-radius: 0px; margin: 0px 0px 10px; padding: 10px;} html-body [data-pb-style="639072563D375"]{border-style: none; border-width: 1px; border-radius: 0px; margin: 0px; padding: 0px;} html-body [data-pb-style="639072563D37B"]{border-style: none; border-width: 1px; border-radius: 0px; margin: 0px; padding: 0px;} html-body [data-pb-style="639072563D381"]{border-style: none; border-width: 1px; border-radius: 0px; margin: 0px; padding: 0px;}