The Player basically has an integrated display with FM, MP3 and Bluetooth, with track control buttons (forward or backward), play/pause, equalizer with 5 modes, folder change and volume. It also has an integrated crossover with HPF and LPF cuts, and RCA output, if you want to install more amplifiers with the player. SPECIFICATIONS: - Power 4 x 100 - 400rms (2 x 200w Bridge) - Mp3 Music Oestesom Bluetooth Fm Usb Pen Drive - Long distance control - RCA output - USB charger - 5 EQ Presets - Crossover HPF/LPF Enjoy all the quality that this Taramps Automotive MP3 Player offers you. NUMBER OF CHANNELS 04 HIGH POWER MODE: Rated Power @14.4VDC - 2 Ohms: 400W RMS (4x 100W RMS) Rated Power @14.4VDC - 4 Ohms: 272W RMS (4x 68W RMS) 2 Channels Bridged @14.4VDC - 4 Ohms: 400W RMS (2 x 200W RMS) LOWPOWER MODE: Rated Power @14.4VDC - 2 Ohms: 160W RMS (4x 40W RMS) Rated Power @14.4VDC - 4 Ohms: 200W RMS (4x 25W RMS) 2 Bridged Channels @14.4VDC - 4 Ohms: 160W RMS (2 x 80W RMS) SIGNAL SOURCES USB (MP3) / FM / Bluetooth FM TUNING BAND 87.5 to 108 MHz, 6 memories AUXILIARY OUTPUT RCA 4.2Vpp (1.5V RMS) CURRENT CAPACITY OF REMOTE OUTPUT 2 Amps CURRENT CAPACITY OF THE USB PORT (CHARGING) Standard Charge 1A SPACE FOR INSTALLATION 1 DIN - ISO7736:1984 FREQUENCY RESPONSE 10Hz ~ 20KHz (-3dB) SIGNAL-NOISE RATIO 72dB MINIMUM SUPPLY VOLTAGE 9VDC MAXIMUM SUPPLY VOLTAGE 16VDC CONSUMPTION ON, WITHOUT AUDIO 0.5A MAXIMUM CONSUMPTION LOW POWER 14.4V DC: 14A HIGH POWER 14.4V DC: 38A MUSICAL CONSUMPTION LOW POWER 14.4V DC: 7A HIGH POWER 14.4V DC: 18.5A PROTECTION SYSTEM Short on output CROSSOVER H.P.F (High Pass Filter): 90Hz (-12dB/8A) Fixed L.P.F (Low Pass Filter): 90Hz (-12dB/8th) Fixed DIMENSIONS (WXHXD) 188 x 58 x 147mm