Feature 1、Dual USB: The Bluetooth transmitter has two USB ports, one is designed for normal charging or reading of U disk (not included), and the other is QC3.0 fast charging port, which is faster than ordinary charging ports. 2、Hands Free Call: With built in microphone and noise suppression technology, the Bluetooth FM transmitter can provide clearer handsfree calls, switch songs perfectly, allowing you to concentrate more on driving. 3、Charging Function: FM transmitter can charge your device, support for Android and for IOS device, it can charge your mobile phone, tablet, camera and other devices. 4、Stable Performance: Using Bluetooth V5.0 and EDR, this car Bluetooth transmitter is very stable, fast when connecting to a smartphone, and there will be no intermittent situations. 5、Application: Professional manufacturing, exquisite and careful workmanship, high performance, strong reliability, bluetooth car adapter fits 12‑24V cars and trucks. Item Type: Car FM Transmitter Material: ABS Working Voltage: 12-24V Transmission Distance: Approx. 5m / 16.4ft Bluetooth Version: 5.0 + EDR Supported Formats: MP3, for WMA FM Frequency: 87.5-108.0MHz Working Temperature: 0-55℃ USB Charging Output: QC3.0, 5V 1.0A Package List 1 x Car FM Transmitter1 x Manual