Color-change LCD Display / Universal Single Din Size: This bluetooth marine radio has the HD LCD display with 7 colors. The color of knob and buttons can be changed to meet your style (Red / White / Blue / Green / Yellow / Purple / Azure / Auto). The 1din car unit is standard size (7"Lx4.5"Wx2"H) and suit most cars or boats with single din dash openings. Please make sure the size of mounting location before ordering. Lossless Sound Quality / APP Remote: This MP3 car player features hooking up to 4 speakers and RCA ports 4x75W for preset amplifier. With the customized EQ / Bass / Treble / Balance / Fader / Loud, this single din audio is ideal for kinds of music styles and brings you superior sound quality. what's more, you can take control the autoradio via IR remote or phone APP. Media Audio Input: This car audio system is equipped with media USB port, MicroSD slot and Auxiliary for external audio input. Read your USB flash drive (up to 64GB), MicroSD card(up to 32GB), MP3, phone, etc to enjoy multiple source music. You can also charge your phone with 2.1A USB quick charge port. This car boat radio has ID3 tag song readout. Easily read the artist, title, track number etc. RDS AM FM Car Radio: This bluetooth car stereo brings you outstanding radio signal on the trip. You can search bands automatically/manually and save up to 30 stations. RDS lets you easily get radio stations info. Tune into your favorite AM/FM for real time news, sports, weather broadcast and more. Power-off memory from the headunit allows you to continually play the track from last hear. Bluetooth 5.0 & Ultral-clear Microphone: The single din car stereo has latest bluetooth system. You can righ away connect bluetooth to this car receiver then get hands-free phone calls or feely enjoy music stream. Easily play your phone's music like spotify/pandora. With internal and external microphone design, you can hear clean and clear calling sound even in noisy envorinment.