the t.bone free solo Twin PT 520 MHz, 2-Channel UHF Wireless System, With 2 pocket transmitters, Frequency band: 518-536 MHz, 10 Pre-programmed frequency groups with 12 available channels each, 1 User channel, Adjustable squelch with threshold display on the receiver, Frequency scan in the receiver, Adjustable AF output, Adjustable transmission power: 5 mW, 10 mW, 20 mW, Infrared transfer of the settings from the receiver to the transmitter, Pilot tone, Increments of 25 kHz, 19""/1U housing with 2 x BNC outputs for antennas, XLR- and jack output, Operates with a 12 V 500 mA DC power supply (positive polarity (+) inside), Transmitter housing: Plastic, 3-Pin TQG male connector, LCD display, Operates with 2 x AA batteries or rechargeable batteries, Includes batteries, a guitar cable, a plastic case and rackmount, Suitable antenna converter available under Article Nr #177448# (not included)