Spy: A modern study of microphone bugs operation and detection talk at 34C3. You can find the slides here, and their white paper here. Focusing their research primarily on FM radio transmitter ...

He’s built himself an amazingly well constructed FM transmitter that ... of the trimmer cap and electret mic, can be picked up in the parts drawers of any Radio Shack. He gets bonus points ...

The bluetooth fm transmitter for car built-in high-performance noise suppression microphone for a clearer ... Music Adapter & Player: Connect car radio and this Bluetooth adapter via the FM ...

For people who are hard of hearing, an FM system can be used in a classroom to amplify the voice of the professor. The system is an individual piece of technology ...

This design ensures the stable transmission of HD audio signals . 【User-Friendly Design】: This FM radio broadcast transmitter boasts a well-shielded, compact design with a modern appearance.