Shure SLXD14E/98H K59, Digital UHF Wireless System, Frequency range: 606 - 650 MHz, With a black WB98 H/C clip microphone, Microphone polar pattern: cardioid, Max. sound pressure level: 143.5 dB, Audio transmission: 24 bit / 48 kHz, Dynamic range: 120 dB, Switching bandwidth: 44 MHz, Switchable transmitter power: 1 mW / 10 mW, 12 Compatible channels per 8 MHz band, Frequency transmission possible via infrared interface, XLR / jack output, Pocket transmitter with a TA4M connector, Transmitter operates with 1.5V AA batteries, optionally also with Li-Ion battery SB903 (not included in the delivery), Incl. 19'' mounting accessories