专利产品。真正的解放上网聊天的距离,真正实现了无线WIRELESSHEADPHONEWITHMICROPHONETRANSMITTER无线麦克风耳机发射器TransmittingresponseChannel148MHZ信道148MHZChannel212MHZ信道212MHZModulationsystem调制方式Frequencymodulation调频WIRELESSSTEREOHEADPHONEWITHMICROPHONE无线麦克风耳机接收器response40-18KHZ频响40-18KHZSinal-to-noiseratio 50dB信噪比 50dBDistortion 1.5%失真度 1.5%OperationrangeApprox.20M工作范围约20米