... Icom,standard,Yaesu,Motorola,transceivers and other brands. two-way radio earphone speaker Speaker size15mmSpeaker size Sound pressure level103 dB ±3dB Impedance32 ... ±2dBImpedance2.2K Ω two-way radio earphone pictures HXKK Technology LimitedHXKK founded at 2004, localed in Long hua,BaoAn,Shenzhen ... are more than 400 workers in our factory, Our main product is two way radio earphone, SPK&MIC, motorcycle ...