Audiences up to 10,000 people will hear your voice clearly with the Pro Audio 100-Watt Wireless UHF PA System from Oklahoma Sound. This public address system includes a wireless handheld microphone that allows 200 feet of free movement. A retractable handle and convenient rolling casters allow easy mobility, so you can bring this PA system anywhere in your office. Make your presentation more fun with music using the built-in CD player, cassette player and iPod dock. Record speeches easily and play them later. Multiple microphone inputs allow up to three speakers to present simultaneously.