2wire Acoustic Tube Surveillance Kits Earphone for Sepura STP9000 Sc21 STP8000 Radios

Listen Only Aoustic Tube Earpiece

Main Function:

· 2-Wire Clear Coil Surveillance Kit

· Easy smooth feel PTT and clear voice quality

· With durable 360 degree metal back clip.

· Vigorous, rugged and adaptable designed for tough working environments.

· Long PTT life can withstand more than200,000 times

Technical specifications:

· SPEAKER

· Dimension (mm): ￠15

· Sensitivity : 114±3dB

· Impedance:32Ω

· Rated output power: 0.5W

· Peak power output: 1W

MICROPHONE

· Dimension (mm): ￠6*5

· Sensitivity: -38±3dB

· Frequency: 1kHz

· Impedance: 2.0V/2.2KΩ

· Operation voltage: 1-10V

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