Shure QLXD14 V51, Digital UHF Wireless System, Includes pocket transmitter for guitar and bass, Frequency band: V51 (174 - 230 MHz), 120 dB dynamic range, Audio signal: 24 bit / 48 kHz, AES-256 encryption for tap-proof transmission, 42 MHz switching bandwidth, Switchable transmission power 1/10 mW, Metal pocket transmitter with 4-pole TQG connection, 9.5"" metal receiver, Detachable BNC antennas, Ethernet port for system monitoring and configuration, Frequency transmission via infrared interface, XLR/jack output, Transmitter operation with either 1.5 V AA batteries, or with (optional) SB 900 lithium ion rechargeable battery, Includes PS23 power supply, WA302 guitar cable and rack mount