Wireless BOYA BY-WM8 Pro-K2 UHF Great Wireless UHF Microphone System with Two Sound Sources The BY-WM8 Pro-K2 kit includes one receiver and two transmitters. The system works flawlessly with DSLRs, mirrorless cameras, Pro Video, and any other kind of camera or portable audio recorder that has an XLR or 3.5mm microphone input. Interviews, film dialogue, field recording, broadcast television, news gathering, vlogging, YouTube videos, and much more can all be done with it. Expert Features, Easy Steps By using the UHF (Ultra High Frequency) spectrum, the BY-WM8 Pro K2 helps you stay clear of interference. Users can run multiple sets of BY-WM8 Pro systems simultaneously without any problems thanks to the 48 channels that are available. Additionally, the operating range (without obstructions) is up to 100 meters.