100-UHF PLL Wireless In-ear Monitor System. Externally powered by AC-DC power adapter. 100 selectable UHF frequencies for interference-free performance (up to 8 systems can operate simultaneously). System consists of one PEM-1000T transmitter and one PEM-1000R bodypack receiver (unlimited additional PEM-1000R receivers can operate with the same transmitter). Easy setup and use with either automatic AutoScan or manual open-frequency selection and ASC™ infrared synchronization of selected channel between transmitter and receivers. Rugged, all-metal half-rack transmitter. Rack mountable singly or side-by-side with optional rack kits. Both transmitter and receiver offer a user-friendly menu with complete control options shown in the LCD display. Proprietary companding circuitry for wide dynamic range and clear, natural sound. Includes lightweight, soft rubber, form-fitted earbuds for comfort and optimum acoustics and isolation. Up to 500ft typical operating range (depending on site conditions). Rugged, foam-padded traveling case provides easy, safe transport and storage. Rugged, all metal half-rack that can be rack mounted singly or side-by-side with optional rack kits. Receiver has AutoScan for finding an open channel and IR SYNC to system transmitter. Handy mute button for muting audio if desired during use.