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Wireless intercom noise-reducing headset

  • Wireless intercom noise-reducing headset
  • Wireless intercom noise-reducing headset
Wireless intercom noise-reducing headsetWireless intercom noise-reducing headset

Wireless intercom noise-reducing headset

  • Product description: Wireless intercom noise-reducing headset
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Apply to air force or naval fleet to work together in noisy environment

1.Microphone

Microphone type: electret

Frequency response: 100Hz8000Hz

Bias voltage: 1.5V12V

Sensitivity: -33dB ±4dB

Impedance: 150Ω~1000Ω(1kHz

Directivity: single directivity

2.output speaker

Speaker type: magnetic speaker

Frequency response: 50Hz12500Hz

Nominal impedance/power: 32Ω/0.1W

Sensitivity: -95dB ±4dB

Specification: Φ27mm


3.applied specification

Operating voltage: 3V

Max operating current: 250mA

Power dissipation: 1W

Carrier frequency: 410/465MHz duplex channel

Receipt sensitivity: -118dB±5dB

SNR: 26dB

4. others

Operating environment: -20℃~65

Transmission distance: 100-1000meters

Products dimension:220*180*100mm

Weight:480g


Noise attenuation

Frequency(Hz)

250

500

1000

2000

3150

4000

6300

8000

Noise-reducing value

6.9

20.2

28.3

31.2

36.1

32.6

40.7

39.1

H=30.6   M=26.8   L=16.3        SNR=26


Functional specification

1. wireless intercom noise-canceling headset, one parent headset matches with several child headset, designed for air force and naval fleet crews.

2. powered by two pieces chargeable lithium batteries. Turn volume knob to switch on electricity and adjust it to appropriate volume.

3. there are five designed channels. By pushing the CH button in earcup, we can switch the channel from CH1 to CH5 cyclically. Parent headset and child headsets should be on same channel to establish duplex communication. Different groups of headsets operates on different channels.

4. After turn on the parent headset, it stays in a condition of transmitting and receiving signals. Without setting PTT button, it can talk to all child headsets. when child headset is turned on, it starts to receiving signals. Set PTT button, push PTT button one time then it can talk to parent headset. Push PTT button again to conclude the talk.

5. Microphone pole can be adjusted, we can bend it to headset band position if no need talk.

6. headset band is shrinkable, we can adjust it to suit for our needs.