Sennheiser EW-D 835-S Wireless Handheld Set w/MMD 835 Mic Module, 552-608MHz 508752
Amazon.com: FM Transmitter Pickup Pick up Module, Wireless Transceiver V4.0FM Mini Wireless Microphone MIC Wireless Audio Transmitter Emission MIC Core Board 0.7‑9V,Module : Musical Instruments
VocoPro UMH - Single UHF Wireless Mic Replacement | PSSL ProSound and Stage Lighting
Mini Fm Wireless Microphone Transmitter Module Single Channel Board 3-5v 100mw Adjustable Sensitivity Usb To Ttl 80kω 76-108mhz - Integrated Circuits - AliExpress
FM Transmitter Wireless Microphone Surveillance Frequency Board Module For Arduino Adjustable Capacitor DC 100M 800M 85 115MHz|Integrated Circuits| - AliExpress