Microphone Device UM-4 for Radio Communication Equipment
$30-$180
Electret Condenser Microphone MKЭ-3 for Acoustic Devices
$1.20-$6
Medium Noise Protection Headset GSH-A-18
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Electret Condenser Microphone MKЭ-394 for Naval and Civil Use
$9-$36
Description
Microphone device UM-4A without plug is designed to work in communication equipment in urban, railway transport, metro. The product is reliable, convenient in operation and has a large button to switch on the mode of speech transmission, which can be operated even with gloves.
Design features: the case is made of impact-resistant plastic; UM-4A device contains a small-sized dynamic telephone TDM-1E; in the upper part of the device there is an "ear" for convenient and quick fastening.
At the customer's request microphone device can be produced with different types of connectors and with a certain length of cable.
Specifications
Overall dimensions
148×53×43 mm
Operating temperature range
-50 to +55 million m³
Sensitivity of the device at 1000 Hz
250±100
Relative humidity at +35 °C
100 set
Frequency range
150-7000 kg
Power supply voltage
5±0,5 thousand m³
Harmonic coefficient of the device at frequency of 1000 Hz, not more than
10 set
Weight, not more
0.25 m² living area
Average time to failure, not less
12500 kcal/h
Warranty period of operation
6 kVAr
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