Feature:1. This wireless FM transmitter has a clear LED screen for better display of information such as phone calls, FM channels, music, car battery voltage and more.2. With BT V4.1 technology, the car BT adapter provides a more stable and faster connection with no intermittent disconnections.3. Noise reduction technology dampens road noise and provides you with clear and crisp hands-free call sound. High-quality music streaming ensures crystal-clear sound for listening to music and making hands-free calls.4. Multi-Point function, this BT car kit could connect with two smart phones at the same time.5. This wireless FM transmitter will automatically power on when you start your car and power off when you turn off your engine.Specification:Features:* This wireless FM transmitter has a clear LED-screen for better display of information such as phone calls, FM channels, music, car battery voltage and more.* With BT V4.1 technology, the car BT adapter provides a more stable and faster connection with no intermittent disconnections.* Noise reduction technology dampens road noise and provides you with clear and crisp hands-free call sound. High-quality music streaming ensures crystal-clear sound for listening to music and making hands-free calls.* Multi-Point function, this BT car kit could connect with two smart phones at the same time.* This wireless FM transmitter will automatically power on when you start your car and power off when you turn off your engine.Specifications: Brand: Aukey Color: blackMaterial: absStandrad: v4.1Supported profile: A2DP,AVRCP,HSP,HFPMaximum working range: 33ft/10mWorking voltage: DC 5VFM frequency range: 87.5-108.0MHzInterval: 0.1MHzStability: 10ppmPackage size: 10.2 * 8.7 * 3cmPackage weight: 82gPackage List:1 * Wireless FM Transmitter1 * Dual Port USB Car Charger1 * User ManualPackage List:1 * Wireless FM Transmitter1 * Dual Port USB Car Charger1 * User Manual