PM-660U
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) | 



 
 
 
 
 
 
 
