Description The TS-923 Microphone is a dedicated component of the Infrared Conference System's Chairman unit and Delegate unit. Its mic head is equipped with an illuminated display ring that allows the status of the units in use to be monitored at a glance. Its gooseneck has two flexible parts, making it possible to adjust the microphone to an optimal position for the user. Specifications Type Electret condenser microphone Directivity Unidirectional Rated Impedance 1.4 kΩ Rated Sensitivity -37 dB (1 kHz 0 dB = 1 V/Pa) LED indicator Speech indicator ( ring type) Red Frequency Response 100 Hz - 13 kHz Output Connector Combined type of XLR-4-32 Flexible Part 2 parts Operatinq Temperature 0 °c to +40 °c (32 °F to 104 °F) Operatinq Humidity 90 %RH or less ( no condensation) Finish Body: Aluminum, black, semi-gloss, paintShaft: Copper alloy, black, semi-qloss, paint Length 470 mm (1.54 ft) Weight 130 q (0.29 lb) Applicable Unit Chairman unit: TS-821, TS-921, TS-811, TS-911Delegate unit: TS-822, TS-922, TS-812, TS-912