Telephone Training Adapter Y Splitter Mute Button for Headset for Nortel Meridican Norstar Avaya Ashtra Mitel Polycom Ge and Other Ip Phone

Telephone Training Adapter Y Splitter+Mute Button for Headset for Nortel Meridican, Norstar, Avaya, Ashtra, Mitel, Polycom, Ge and Other IP Phone

AGPTEK Hands-Free Call Center Noise Cancelling Corded Binaural Headset Headphone with 4-Pin RJ9 Crystal Head and Mic Microphone for Desk Phone - Telephone Counselling Services, Insurance, Hospitals