PERSONAL WIRELESS BROADCAST SYSTEM--FCC certified. FCC ID:2ASVO05B7CT200.With this wireless broadcast system,you could create your own radio station.Just set the channel you want in the middle of 76 ~ 108MHz, and the sound will be transmitted. | MAX 300M LONG RANGE FM TRANSMITTER--This FM transmitter with antenna can transmit a specific frequency and use the radio to receive it.Especially suitable for quiet places like churches,car theater,fleet communication(within 300m/1000ft).It can also be connected external microphone equipment and used in wide place such as campus radio, shopping mall radio, wireless audio, conference speech etc. | PLL SETTING FOR HIGH-FIDELITY STEREO--Restore perfect stereo sound quality,the mini fm transmitter could adjust microphone and volume independently.Built-in PLL advanced modulation system,which make the transmitter work stably. | LCD DISPLAY & AUTOMATIC STORAGE--It's intuitive and easy to adjust through the display.When it turn off,the set parameters could be storage automatically. | SUPERIOR HEAT DISSIPATION--With high-quality aluminum alloy material shell and heat sink,the wireless stereo fm transmitter can not be hot while long time use, which also delays the life of the machine.