Line 6 Relay G50 Wireless Guitar System: Wired Tone, Wireless Freedom 200-foot range, line-of-sight Wide dynamic range of more than 110dB(A weighted).Broad 10Hz  20kHz frequency response; Superior 120dB dynamic range; 24-bit digital conversion, 8 hours of battery life (AA alkaline batteries) Comes complete with transmitter, receiver (Rugged metal enclosure) and all necessary accessories including locking cable, power supply and batteries 2.4GHz band is optimal for guitar wireless, FCC/DTV compliant Multiple layers of signal protection; Encrypted data stream; Simultaneous broadcasts on multiple channels