PRA-8000 Oklahoma Sound Wireless PA System lets you effectively play music, make announcements and more. 40-watt Solid State amplifier matched to an 8" built-in speaker delivers strong, clear sound, whatever your need. Omni-directional, wireless handheld mic (included) effortlessly broadcasts up to 100 feet away from the receiver. Extensive control panel includes wired-mic input and auxiliary inputs for MP3 and other media players. Sync your smart phone directly through built-in Bluetooth technology or plug it in using a built-in USB port. Unit also includes an SD/MMC port. Operate via AC plug or use remotely for up to five hours using a built-in, rechargeable battery.