The Pyle PLCD5MRBTS in-dash stereo radio headunit receiver features versatile Bluetooth wireless streaming abilities. Once connected to your speaker system the unit s built-in microphone along with Bluetooth connectivity allows you to enjoy hands-free call answering. The incoming calls automatically appear on the unit s LCD digital display screen and any playing music automatically quiets down to allow for two-way communication -- just like placing your smartphone on speaker. You can also use the receiver s Bluetooth ability to stream music directly from your smartphone quick & easy. The single DIN universal standard comes loaded with features like AM/FM radio with 30 presets USB flash drive reader SD memory card reader and Aux (3.5mm) input connector jack. It s another option that gives you the ability to connect and stream audio from external devices (like smartphones tablets MP3 players etc.). Digital audio file support allows you to stream your MP3 files -- while having quick access to the front panel control center and digital LCD display screen -- or control it all with the included wireless remote control. Add convenient and versatile music playback ability with the Pyle PLCD5MRBTS Bluetooth Stereo Radio Headunit Receiver System.