Yealink Phone Headset RJ9 with Noise Canceling Wideband Headset with Mic Telephone Headset Compatible for Cisco Avaya Polycom Grandstream Snom VoIP Ph

Perfectly compatible with more other Brand IP Phones‘Runs right out of box, it supports QD(Quick Disconnect) to RJ9 plug-and-play setup makes the connectivity to other brand Desk phones(Compatible with Cisco IP Phones, Avaya callmaster, Snom VOIP Phone, Grandstream or Polycom etc.) or Yealink enterprise IP phones or desk phones give you optimized audio quality and more enhanced functions, is the over-the-head style headset which is made for office worker, SOHO, or call center staff.