Shure QLXD4 H51, Digital UHF Receiver, Frequency band: H51: 534 - 598 MHz, 24 Bit / 48 kHz Audio signal, AES-256, Up to 72 MHz bandwidth, 22 compatible channels in an 8 MHz TV band, 9,5"" Case, Detachable BNC antennas, Ethernet connection for monitoring and configuration of the system, Frequency transmission over infrared interface, XLR / Jack output, Including PS23 power adapter, rack mount, antennas and frontal antenna mounting set