Dual Electronics MXD135BT Multimedia 3.7 inch Single DIN Marine Stereo with Built-in Bluetooth, USB & MP3 Ports BUILT-IN BLUETOOTH WIRELESS TECHNOLOGY  your marine stereo receiver will easily pair with the vast majority of Bluetooth devices allowing you to make and receive all your calls Hands Free MUSIC STREAMING  your marine stereo will allow you to stream music right from your phone or media player and also stream music from apps such as Pandora & Spotify 3.7 INCH POSITIVE 10 CHARACTER LCD DISPLAY  the high contrast 10 black characters on a white background ensures easy readability from total darkness to direct sunlight MARINIZATION TREATMENT  all your exterior metal surfaces undergo EDP treatment which offers unparalleled protection against corrosion and rust while the inside is Conformal Coated to protect against dirt and moisture TEMPERATURE & UV RESISTANT  all exposed features of your marine stereo are carefully injection-molded using high-temperature UV resistant resin preventing breakdown against the sun and salt sprays while ensuring longevity DIMENSIONS  Single DIN (7 W x 6 D x 2 H)