The VocoPro UHF-5800 4-Channel Wireless Microphone System features 4 microphone channels and individual volume controls that enable precise vocal balancing. The 4 included hand-held mics have a 12-hour battery life which means the party can go all night. The UHF-5800 Wireless Mic System gives you maximized vocal options without the fear of frequency interference. Going wireless means that you are free from cables for more active performances that the crowd will never forget. DJs will love that each mic channel has its own field-replaceable module that easily slides out, without the need for tools and without affecting the functionality of the other channels. Karaoke vocalists, home entertainment enthusiasts, and club-goers will all benefit from the reliability and versatility of the VocoPro UHF-5800. The receiver is housed in a rugged 1RU metal chassis.