The DS18 Hydro MXRC-BT enhances your sound experience on the water or off-road with an innovative and mountable Bluetooth streaming device. No more fumbling around with your phone to adjust volume or select songs. With its compact size, you can mount it virtually anywhere there is room, making it perfect for marine or off-road applications without an existing radio. Featuring adjustable volume, song selection, and source modes, the MXRC-BT puts you in complete control of your music. The MXRC-BT also offers options for integrated Bluetooth streaming and USB source selection. Connect wirelessly to your devices within a range of up to 35' (conditions may vary) or plug in your devices using the convenient 3.5mm aux line input or USB player with support for up to 32GB. Built to withstand the harshest elements, this receiver is waterproof with an IP55 rating and is resistant to UV rays and salt. Conformal coating and rubber buttons make the MXRC-BT designed to endure any rugged adventure you embark on. The DS18 MXRC-BT delivers exceptional sound quality with a frequency response of 20Hz - 20kHz, a signal-to-noise ratio of =80dB, and total harmonic distortion of =0.1%. Its RCA line out provides a clear audio signal, while the remote output allows for convenient control of external devices.• Marine and Powersports Audio Receiver• Bluetooth 5.0 + AZDP• AUX and USB Input• RCA Output• Water-Resistant IP55SpecificationsFrequency Response: 20Hz - 20kHzVoltage Operation: 10-15V DCWireless Range: 35'Waterproof Rating: IP55Dimensions: 2.43" dia. x 1.83"DMounting Hole: 1.77" dia. Mounting Depth: 1.18" Connect wirelessly to your devices within a range of up to 35' 3.5mm aux line input and USB input IP55 waterproof rating and resistant to UV rays and salt | MXRC-BT Marine Waterproof Bluetooth Audio Receiver with Controls