Phone Headset RJ9 with Microphone Noise Cancelling & Volume Controls, Office Telephone Headset Compatible with Polycom Plantronics Avaya ShoreTel Toshiba Digium Nortel Landline Phones, Clear CallsGlobal Recycled StandardGlobal Recycled StandardGlobal Recycled Standard

Phone Headset RJ9 with Microphone Noise Cancelling & Volume Controls, Office Telephone Headset Compatible with Polycom Plantronics Avaya ShoreTel Toshiba Digium Nortel Landline Phones, Clear Calls

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

Wantek Corded Telephone Headset Mono w/Noise Canceling Mic Compatible with ShoreTel Plantronics Polycom Zultys Toshiba NEC Aspire Dterm Nortel Norstar Meridian Packet8 Landline Deskphones(F600S2)