Short chassis for easier installation; 13-digit 1.5-line LCD display ; Variable color illumination ; Theft-deterrent face plate ; Bluetooth(R) with Qualcomm(R) aptX(TM); Dual phone connection ; Wireless music browsing; KENWOOD(R) Music Mix for streaming & control up to 5 paired smartphones; Front aux input & dual USB ports with charging capabilities ; MP3/WMA/AAC/WAV/DSD/FLAC playback; iPhone(R)/iPod(R) direct connection via optional cable ; Android(TM) music playback ; Android(TM) Rapid Charge ; Pandora(R) Internet Radio, Spotify(R) & iHeartRadio(R) app ready ; 50W x 4 ; 13-band EQ, 8 EQ curves & Time Alignment sound staging; Bass boost & loudness controls ; Low-pass filter & subwoofer level control ; 3 pairs of 4V RCA preamp outputs ; KENWOOD(R) Remote App ready; OEM remote interface compatible; Includes rear wired Bluetooth(R) microphone, wiring harness, mounting hardwire, warranty card & user guide ; Model KMM-BT522HD;