Microphone for Cisco Dual Ear RJ9 IP Phone Headset with Noise Cancelling Oppetec
By using RJ9 ADAPTOR, this Office Headset will be compatible with more phone models from Yealink Akuvox Cisco Dlink Escene Fanvil Grandstream Htek Huawei.etc. Pls ask us for advice if you're not sure about the compatibility.