This FM transmitter with Bluetooth is the perfect solution for streaming music and taking phone calls hands-free in the car. The device is compatible with all Bluetooth-enabled phones and can be easily connected to the car's sound system via FM frequency to play music from apps such as Spotify. The built-in microphone allows you to take calls with the touch of a button, and the clear LCD display shows which radio channel you need to tune to listen to the music in the speakers. In addition, the FM transmitter can also be used as a practical car charger. With this all-in-one device, you can enjoy hands-free communication and music streaming in a safe and convenient way during your car trips. Color: Black 2x USB sockets (3.1A for charging, 1A for music from USB) Bit rate: 64-320kbps FM frequency range: 87.5-108 MHz