Pyle Model: PLMRKT48BKPyle Bluetooth Marine Stereo Receiver & Speaker Kit AM/FM Radio Headunit with Wireless Streaming Hands-Free Calling Ability (4) Waterproof 6.5 Speakers MP3/USB/SD/AUX Single DIN 4 x 75 WattSystem Features:Kit Includes Receiver + (4) Marine Speakers + AccessoriesIn-Dash Console Marine Stereo System Digital AM/FM Radio TunerBluetooth Wireless Music StreamingBuilt-in Microphone for Hands-Free TalkingUSB Flash Drive & Micro SD Memory Card ReadersAux (3.5mm) Input Connector JackAbility to Connect Additional External Devices (Smartphones, MP3 Players, Tablets)Rear RCA (L/R) Output Connector JacksIlluminated Button ControlsLCD Digital Display PanelID3 Tag Song Readout Information: Name, Title & ArtistBass, Treble, Balance, Fader AdjustmentRepeat/Random Music FunctionsEQ Audio ConfigurationUsed for Automobile, Off-Road, Boat & Marine WatercraftBluetooth Receiver Connectivity:Built-in Bluetooth Wireless Music Streaming ReceiverIntegrated Front Panel Microphone