ACT infrared pairing of mics to receiver. PA & Live Sound. Music Software. Computer Music. These antennas are spaced apart and the receiver continuously polls both to select the one with the strongest signal.
eBay
The Elevation Uni-Directional Wireless Karaoke Microphone Mic with Receiver is a dynamic microphone designed for karaoke use. With a unidirectional polar pattern, this wireless handheld microphone features an on/off switch for easy control. Perfect for singing in a karaoke setting, this microphone offers convenient wireless connectivity and is ideal for those looking for a high-quality microphone solution.
eBay
[Professional Wireless Transceiver Systems] The A11 Wireless Microphone System Upgrade features dual transmitters and the latest wireless UHF frequency transmission technology，2.4GHz band is optimal for Microphone wireless, Solid RF connection over a 100 feet range, uncompressed wireless signal transmission, low noise and latency.
eBay
Utilizing advanced wireless audio transmission technology, this xlr transmitter and receiver ensure clear and stable audio signals. The wireless microphone converter features a plug and play design, eliminating the need for complex setup.
eBay
Kam KBP-UHFa Bodypack Microphone Transmitter Wireless Lapel Headset Mic KWM. New and tested - box is reasonable but not pristine. Comes with a lavalier microphone and headset mic plus a connector (1/4 jack) for instrument connections. Compatible with the KAM microphone/receiver systems listed and as a DIP switch to select from 16 frequencies. Will be shipped out next day.
eBay
eBay
[Internal and Lavalier Mic Versatility]:The T8 microphone provides the flexibility to use either the built-in microphone for convenience or connect an external Lavalier microphone for discreet and high-quality audio capture.
eBay
The item is 2in1 Handheld Cordless Microphone Karaoke System Undirectional. It can be dual-used, and for wireless, it makes you sing free of dragging cord, and wired one lets you sing without the concern of battery power off.
eBay