BOSS Audio Systems MG150T.4 Marine ATV UTV Audio Stereo System – 4 Inch Waketower Speakers, Gauge Radio Receiver, Bluetooth Audio Head Unit, Amplified, IPX6 Weatherproof, No CD Player, Amplifier Crest the waves while enjoying your music with the BOSS Audio MGR450B Weatherproof Gauge Mech-Less Digital Media Player. Turn on the Weather Band/AM/FM radio, hook up your smartphone or MP3 player through the Auxiliary input or plug into the USB port to charge or play USB-connected devices. Bluetooth technology lets you stream audio apps like Spotify and Pandora. Change up the sound with the built-in Subwoofer Control and Preset EQ. With an IPX Rating of 6, state-of-the-art weatherproofing materials and special UV protection coatings, the MGR450B resists corrosion and is protected from the elements. Keep your tunes flowing with the Boss Audio MGR450B. Marine ATV UTV Waketower Speakers Gauge Receiver (Built-In 2 CH Amplifier) Package – IPX6 Weatherproof, Bluetooth, No CD, USB, Aux-In, 4 Inch Waketower Speakers, 2 Way The MG150T.4 Weatherproof gauge receiver and waketower package will never cause you to miss a beat. The MGR150B Marine receiver has a built-in 2 channel amplifier, perfect for hooking up the included 2 Waketowers. It is IPX6 rated designed for an outing or life on the water. A little splash of water and humidity on the boat, or some dust and dirt while riding your ATV UTV does not phase this package. You can use the Bluetooth, auxiliary input, and USB port to quickly connect to your audio sources. The receiver does not have a CD player.