... Audio output100mW Frequency response200-5000 HZ two-way radio headset for kenwood microphone Microphone size6.0*5.2mmFrequency response20- ... 16000HzSensitivity56dB±2dBImpedance2.2K Ω two-way radio headset for kenwood pictures HXKK Technology LimitedHXKK founded at 2004, ... product is two way radio earphone, SPK&MIC, motorcycle earphone for two way radio, noise cancel earphone, wireless ...