Sirus Quad C 823 MKII

Sirus Quad C 823 MKII, UHF Conference Table Microphone Unit, With gooseneck microphone, Compatible with Sirus Quad R 823 MKII (Art. #563362#, not included), Condenser microphone, Polar pattern: Cardioid, Synchronisation with the receiver via infrared, Frequency band: 823-832 and 863-865 MHz, Frequency range: 40 - 18,000 Hz, Total harmonic distortion: < 0.5 % @ 1 kHz, Transmitter power: < 30 mW (switchable), Battery: 2x AA 1.5 V, Battery life: 8 or 15 hours (depending on transmitting power), Display: frequency and battery status, Volume control, Gooseneck length: 410 mm, Dimensions microphone unit (W x H x D): 175 x 115 x 50 mm, Weight: 650 g, Colour: Black