CZE-7C 7W FM Transmitter (76 - 108 MHz)

https://www.thejammerblocker.com/cze-7c-7w-fm-transmitter-signal-jammer-76-108-mhz/
The device effectively suppresses FM signals in the 76 to 108 MHz range with a range of up to 100 meters, blocking radio stations operating in the same frequency band. Via the AUX input, you can also connect a mobile phone or microphone to the CZE-7C and play your personal music.