Using the FM transmission for sound output, you can also enjoy the + radio even your car radio without + function. High sensitivity active antenna helps avoid interference from other signals to make sure a stable and smooth radio listening. With BT function, more convenient and safe to answer phone calls or listen to BT music while driving. Large 2.4inch color LCD displays photo, program name, ppt and others to let you control real-time conditon of station. Adopting decoding, CD sound quality is great and noise-free that gives you a great radio listening enjoyment. High audio quality output via AUX (AUX Cable NOT included); support TF card MP3 player. Wireless transmission for radio to your existing car radio amplifier by FM transmission technology. Service following function & quick scan to search available free / + frequency. Power Supply:5V DC Frequency Range:174-240MHz. FM Transmit Range:87.5-108MHz. LCD Display:2.4inch TFT Screen Audio Output:3.5mm audio output External Source:TF card, BT Bluetooth Hands-free Call:Support Note: applies to the following countries, all European countries and Australia. Colour:Black Material:plastic Package Contents: 5 set x car Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.