Shure QLXD14/98H V51, Digital VHF Wireless System, With pocket transmitter and instrument clip microphone, Frequency band: V51 (174-230 MHz), 24 Bit / 48 kHz audio signal, AES-256 encryption for secure transmission, 42 MHz bandwidth, 22 Compatible channels in an 8 MHz TV band, Switchable transmitter power 1/10 mW, 120 dB dynamic range, Metal pocket transmitter with 4 pin TQG connector, Beta98 H/C condenser instrument microphone, Polar pattern: Cardioid, 9.5"" Metal receiver, Detachable BNC antennas, Ethernet connection for monitoring and configuration of the system, Frequency transmission via infrared interface, XLR/TRS output, Transmitter operates with 1.5 V AA batteries - also available with SB 900 lithium ion battery, Including PS23 power supply and rackmount