FM transmitter with Bluetooth HandsFree function and 3 sockets for charging devices. Universal for 12/24V vehicles. Charger. USB-A socket with Auto-ID function, which automatically identifies the device battery, adjusting the charging power accordingly. USB-C socket supports fast charging with Power Delivery (PD). USB-A sockets with Quick Charge 4.0+ (QC4.0 +) function, which allows very fast charging of the battery of devices that support this technology. FM transmitter and Bluetooth HandsFree. Supports Bluetooth 5.0 A2DP wireless transmission with the ability to connect 2 phones, acts as a hands-free set - has a built-in microphone and transfers sound to the vehicle speakers via FM transmission, also supports TF cards and USB drives. The voltmeter has a display showing the current status of the vehicle battery.