Marine Receiver & Speaker Kit - In-Dash LCD Digital Display Stereo w/ Clock Function AM FM Tuning Radio 6.5" Speaker System USB/SD/MMC Readers Panel Button & Remote Control - Pyle White PLMRKT33WT RADIO USB READERS: Pyle marine receiver and speaker kit have an AM/FM radio tuning with 30 station memory. It also features USB flash and SD memory card readers with aux (3.5mm) input connector jack to connect and stream audio from external devices LCD DISPLAY: The in-dash receiver has an LCD digital display panel that flashes the radio station you are listening. It also has clock function, weather band function and packs with 6.5" round speaker system CONTROL BUTTONS: The stereo headunit receiver has a blue illuminated front panel button controls for rear panel RCA (L/R) and preset equalizer (EQ). It also shows volume, bass, treble, balance, mute, different channel and power control REMOTE CONTROL: A simple and user-friendly remote control is included with the PLMRKT33WT, providing all the functionality you need from switching input sources. It will also allow you to access all functions of the receiver quickly and efficiently STEREO HEADUNIT: The head unit receiver is pack with single DIN universal size standard at 200 watts power peak that supports USB/SD memory and 2 channel RCA line out. It also includes all power/wiring harness AM/FM-MPX PLL Tuning Radio - 2 Channel RCA Line Out - Marine Coating LCD Display - USB Interface (Decode MP3 WMA) - Blue Illumination Volume/Bass/Treble/Balnce/Fader Control - SD/MMC Slot - Clock Function 30 Station Memory - AUX Input - 6.5" Speaker System Power Output 4 x 50 Watts - Remote Input - Weather Band Function For correct installation kindly look at the user guide below