Brushed metal panel Dual knob development and design. Built-in Bluetooth + phone. Hands-free calls Supports Advanced Audio Distribution Profile Off time display function Digital high-quality FM stereo radio, Preset 18 stations (frequency: 87.5-108 MHz) Support USB / SD / MMC card reader Support Audio: MP3 / WMA / WAV, etc. Support folder function Support breakpoints and ID3 Play Support Remote control Rotary Volume Control MP3 randomized, 10 track up / down playback Electronic control volume treble, bass, balance and fader Mute and Loudess control L / R RCA audio output jacks 4-channel high power output (4 loud speaker) size: 178 mm (W) * 50MM (H) * 68mm (D) Overall dimensions: 188 mm * 58mm (H) Supply voltage:12V PC interface type: Colour: Black Material: Plastic + Metal Package Contents: 1 x car MP3 player 1 x remote control 2 cable 2 x keys to install 1 x English user manual Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.