FM transmitter upgrade kit, Bluetooth FM transmitter radio adapter, with dual USB car charger and MP3 player interface.

Smart Dual-Port Charging: Two USB ports support fast charging, allowing simultaneous charging of two devices for optimal performance. Intelligent temperature control and short-circuit protection ensure safe charging.

Hands-Free Calling and More Stable Voice Navigation: Stable Bluetooth connectivity and CVC noise reduction technology provide a superior hands-free calling experience. You can also get clear voice navigation via a mobile app.

Battery Voltage Monitoring and Blue Indicator: This device is equipped with a voltmeter to display battery status. Stay informed about your battery's condition and avoid problems while driving.

Wide Frequency Range and Compatibility: This Bluetooth transmitter is compatible with most smartphones and other Bluetooth devices. Furthermore, its wide frequency range (87.5 MHz to 108 MHz) allows you to enjoy a more stable, interference-free music experience.