Parts List: 1?ÁBluetooth FM Transmitter 1?ÁInstruction Manual Product Name: Bluetooth FM Transmitter Bluetooth version: V5.0 Shell material: ABS Frequency range: 88.1-107.9MHz Product input: 12-24V Total USB output: 5V/4.8A, 24W max Wireless effective distance: 10m FM transmission distance: 3meter USB flash drive capacity ?Ü64GB Size: 44?Á37.1?Á88.6mm Color: Black Notes: 1.Please find a " no interference" car radio frequency, if the frequency is not occupied, it will emit a slight steady rustling sound. Adjust the FM frequency of the product to be the same as the FM frequency of the car (the car radio will be very quiet, if it is still not quiet, try a new blank channel on the car radio again). 2.There may be slight differences between the picture and the actual color of the commodity. We will try our best to show you the exact color. 3.Please allow slight dimension difference due to manual measurement. Dis