ImPro UHF-89 Dual Wireless Microphones for Karaoke & Events – 20 Selectable Channels, On-Mic Volume ControlBring the energy without the cable clutter. The ImPro UHF 89 is a dual handheld UHF wireless microphone set made for karaoke nights, parties, meetings, and small events with simple channel selection, on mic volume controls, and a compact plug in receiver that keeps setup quick and clean. Why you'll love it: Two wireless handheld mics (dual set): Perfect for duets, announcements, games, and group sing alongs. 20 selectable UHF channels (560 570 MHz):