Description: Name:FM Transmitter Shell material: ABS; Shell surface technology: fine lines, high gloss; Features: Appearance patent / default blue-ray large screen, separate voltage display; Input: 12 more→-24V; Output: 5V-1.5A or 5V-3.1A C port 9V-2A; Total power: 7.5-15W; Output port type: USB, type-c; Protocol: Bluetooth-compatible 5.0; Hardware functions: FM transmitter, Bluetooth-compatible, USB charging, reading U disk, TF/color light, EQ function; Packing list: 1 x FM Transmitter 1 x instructions 1 x box Note: Due to manual measurement, please allow 1-3 cm error, thank you Due to screen and other objective reasons, there may be a certain color difference, please understand.