Sennheiser XSW 2-Ci1 A-Band Instrument, True Diversity UHF Wireless System, With pocket transmitter and guitar cable, Frequency range A band: 548 - 572 MHz, Metal housing, 24 MHz bandwidth, 8 Frequency banks with up to 12 presets for each, External BNC antennas, Auto-Tune to find free frequencies, 10 mW transmitter power, Audio frequency range 50 - 16,000 Hz, XLR and jack outputs, Adjustable squelch, Mic/Line switchable@+*Set includes:*@+@+, 1x SK-XSW pocket transmitter, 1x EM-XSW2 Diversity receiver, NT 12-5 CW power supply, Ci1 guitar cable, 2x AA batteries, Rackkit, Pocket/bag/pouch