1.44-inch LCD Screen: The 2024 Upgraded KM18 Bluetooth Adapter Aux Input & Output features a 1.44-inch screen for better display of information like phone calls, FM channels, music, car battery voltage, etc. The ideal screen size to help you drive safely without distractions. Flexible Gooseneck: The rotatable gooseneck of the wireless radio adapter can provide you with an adjustable viewing angle and optimal viewing comfort for the LCD screen. Noise Reduction & Hi-Fi Sound Quality: Noise reduction technology dampens road noise and provides you with clear, crisp audio for hands-free calls. Music streaming ensures crystal-clear sound for listening to music and hands-free calls. Bluetooth V5.0: With Bluetooth V5.0 technology, the car Bluetooth adapter can provide a more stable and faster connection without intermittent interruptions. Hands-Free Calls: All-in-one button for hands-free calls: answer, reject, hang up, redial allows you to seamlessly switch between incoming calls and music. Enjoy full voice control and safer driving with this Bluetooth transmitter. Wide Compatibility: The FM modulator transmitter is compatible with most devices, such as iPad, iPhone, iPod, MP3 player, tablet, and Android smartphones. You can play your favorite songs on your car stereo via Bluetooth, TF card, and Aux cable. And it fits 12V-24V cars and trucks.