Designed for paging calls and general announcements, the PM-660U desk-top microphone comes with a large talk switch and a lock lever for easy and convenient operation. Its robust anti-vibration construction and balanced output render the microphone resistive to noise. In addition, the PM-660U microphone is equipped with a remote control switch (interlocked with the talk switch) for amplifier power on/off operation or chime activation. Type Moving coil microphone Polar Pattern Unidirectional Rated Impedance 600 Ω, Balanced Rated Sensitivity -58 dB (1 kHz, 0 dB=1 V/Pa) Frequency Response 100 Hz - 10 kHz Output 4-conductor (2-shielded) cable (2.5 m (8.2 ft)) without plug Talk Switch 1-push-to-talk switch, 1-locking lever, Short-off type Remote Control 500 mA or less at 30 V DC Operating Temperature -10 ℃ to +50 ℃ (14 ゜F to 122 ゜F) Operating Humidity 95 %RH or less (no condensation) Finish Microphone head: Zinc plated steel wire, gray baked paint Main unit: ABS resin, gray Dimensions 100 (W) × 212 (H) × 150 (D) mm (3.94" × 8.35" × 5.91") Weight 400 g (0.88 lb) (cord excluded)
