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EM-4438 is a Single Wire Transparent Acoustic tube security surveillance headset allows you to communicate easily and discreetly when using your two way radio. The EM-4438 Walkie Talkie Earpiece features a microphone with push-to-talk (PTT) and a clear acoustic tube with rubber eartip for comfortable wear during extended periods.
Microphone Specification: | |
Sensitivity Range | -40± 3dB RL=1.0K Q Vs=2.0V(DC) 1KHz |
Impedance Max | 2.2K2 1kHz (RL=2.2KΩ) |
Frequency | 20-20KHz |
Current Consumption Max | VS=2.0V RL=2.2KΩ MAX: 500 μA |
Operation Voltage Range | 2.5-10V (DC |
Max Sound pressure Level | 110dB S.P.L |
Speaker Specification: | |
Impedance | 30Ω+15%@1KHZ |
Sensitivity | 120dB+10%/1Watt 0.5Meter |
Resonance freq | (FO) 680HZ+20% |
Frequency respond | F-5KHZ |
Rated input power | 1.0W |
Maximum input power | 1.5W |
3rd Floor,Building C,Kemron Science &Technology Park,Guansheng 5th Road,Guanlan,Longhua District, Shenzhen,China,518110
