[7 color Backlights]7-color key backlights variations, Let the music flow along the lights in the dark. 2 USB ports (one to play music, one support phone fast charge), AUX-in, SD/TF card slot, RCA output/input port, built-in microphone, A variety of EQ sound effects scene selection, can connect with subwoofer. The dimension of our unit is 7"(L)*2.75"(W)*1.96"(H) [Car Radio with Bluetooth] Play music through your Bluetooth device or use the USB port. Digital media support include MP3/WMA/WAV/FLAC and APE file formats. Tune into the FM radio stations for up to date music, news, sports and more, Making Your Commute or Road Trip More Enjoyable and the car stereo with bluetooth compatible with the audio output from smartphones as well as MP3 players [Bluetooth Hands-free Calling]Car Radio with Bluetooth has the function of Answer/make calls and be hands-free with no distractions, No need to pick up the phone using hands which provides guarantee for safety driving. the car stereo with built-in microphone picks up your voice and your car speakers let you hear the person on the other side. Play and control your music apps like Spotify/Pandora [Multifunction In-Dash Receiver]Bluetooth car stereo with power-off memory - Ignition again after parking , automatically restore to the previous playback state. you and your buddies can stream all your favorite tunes straight from your phone all trip long You'll be able to keep your phones charged thanks to the USB capabilities of this receiver. and thanks to bluetooth, even your friends sitting in the back of the car can control the music and we also gave away a remote control [NOTEAlthough there is no Bluetooth logo on the outer packaging, the product itself has Bluetooth functions] Dual USB/TF Card Playback Support various brands of USB devices and TF cards Another USB Charging Port Charge your phone anytime , anywhere , and never worryabout running out of power when you navigate (*Support up to 5V / 2.1A high current output) Power-off Memory Ignition again after parking , automatically restoreto the previous playback state , radio frequency,USB track , accurate to the second. Clock Display Adjust the setting time with the CLK button and VOL button FM Radio With FM radio 18 preset station, which can search channels in full-automatic/ semiautomatic/ acurate adjustment ways. Listen to various traffic conditions , weather conditions , music broadcasts , at any time AUX Input The Aux Input allows you to connect to the audio output of an external device such as an MP3 Player or Smartphone so you can enjoy your music through your system( AUX cable needs to be purchased separately ) Size The dimension of our unit is 7"(L) * 2.75"(W) * 1.96"(H) Package 1 * Single din car stereo 1 * Remote control