How To Use?
-1. Plug the FM transmitter into the cigarette lighter outlet, it will turn on automatically and show the battery voltage of the car.
-2. Turn your car radio to an unused FM frequency, then match this FM transmitter to the same fm station. FM channels 87.5 MHz - 108.0 MHz, 0.1MHz/step.
-3. Insert a USB flash driver, SD card or pair with Bluetooth FM transmitter('named T25') with your digital device to enjoy music or hands-free conversation.

Specifications:
FM Frequency Range: 87.5-108.0MHz
Bluetooth Version: V4.2
Input Voltage: DC12V-24V
Music Format: MP3,WAV,WMA,FLAC, APE
External Memory: SD card / U disk
Transmitting Distance: > 5M
USB Output: DC 5V/3.4A
SD and USB Flash Disk(Max capacity): 32GB

Note:
1.When using, please find an empty station firstly and keep the FM transmitter and car FM radio at the same frequency.
2.Please change another stable channel if it has a lot of static or noise for the frequency conflict.
3.SD card and USB disk can support MP3, WMA, WAV, FLAC, APE format, if there is no USB disk and SD card, then just try the Bluetooth or fm frequency.

Package Included:
1x Bluetooth FM transmitter
1x User Manual