Shure QLXD14/85 V51, Digital UHF wireless system with pocket transmitter and lavalier microphone, Frequency band: V51 (174-230 MHz), 24-Bit / 48 kHz audio signal, AES-256 encryption for a secure transmission, 42 MHz switching bandwidth, 22 Compatible channels in an 8 MHz TV band, Switchable transmission power 1/10 mW, 120 dB Dynamic range, Metal pocket transmitter with 4-pin TQG connector, WL185 condenser lavalier microphone, Directional characteristics: Cardioid, 9.5"" Metal receiver, Detachable BNC antennas, Ethernet port for monitoring and configuring the system, Frequency transmission via infrared interface, XLR / Jack output, Transmitter operates with 1.5 V AA batteries - optional also with a SB 900 lithium ion battery, Incl. PS23 power supply and rackmount