Product Detail 30-meter range, line-of-sight Broad 10Hz - 20kHz frequency response; Superior 118 dB dynamic range, 8 hours of battery life (AA alkaline batteries) Comes complete with transmitter, receiver (Rugged polycarbonate shell) and all necessary accessories including cable, power supply and batteries 2.4GHz band is optimal for guitar wireless, approved for use in Europe, South America, Asia and Australia. Encrypted data stream for added signal protection; Simultaneous broadcasts on six channels . The "Line 6 Relay G30 Wireless Guitar System" is best product for you. We recommended Line 6 Relay G30 Wireless Guitar System