Nady ENC I Wireless Instrument/Guitar System with Wireless Guitar Transmitter A full set of professional features. Unsurpassed state-of-the-art VHF performance with operation up to 500 feet line-of sight Proprietary companding and low-noise circuitry for an amazing 120dB dynamic range Half-rack receiver design with folding front panel dual antennas Durable WLT-15 bodypack transmitter w/ locking 3.5mm jack ensures secure connection and dependable operation. IC-U2 locking guitar cable included. This is a single fixed-frequency wireless system. Please consult the manufacturer to confirm compatibility when attempting to use two or more of this system simultaneously or use it with other wireless systems.