HD Wireless Microphone SystemsRevolabs HD Single, Dual & Venue No wires. No limitations. These wireless microphone systems are optimized for spaces from video carts and small conference rooms to boardrooms and auditoriums. Amplify your voice, record lectures, and facilitate clear video conferencing with models specialized to your space. Their portable plug-and-play design, simple setup, and superior HD sound quality make them excellent options for a wide range of applications.