Callez RJ9 Phone Headset with Microphone Noise Cancelling, Office Telephone Compatible Polycom NEC Avaya BT Converse Paragon Mitel Alcatel ShoreTel Siemens Fanvil InterTel Landline Phones

【Compatible List for Polycom IP Phones】Landline telephone headsets with RJ9 jack work for polycom VVX101 VVX201 VVX301 VVX401 VVX501 VVX601 VVX150 VVX300 VVX310 VVX311 VVX330 VVX400 VVX410 VVX411 VVX500 VVX600 VVX1500 SoundPoint 300 301 335 430 450 500 (rev. E or later) 501 550 560 600 601 650 670 CX300 CX500 CX600 CX700. NOT for Polycom SoundPoint IP320, 321, 330, 331, Pro SE-220, SE-225. 【Compatible List for Other IP Phones】Office phone headset with microphone ONLY compatible with some specific landline phone models such as NEC DT400 DT900 DT700, Avaya 1408 1416 9508, BT Converse 2200 2100, BT Paragon 650 550, Mitel 5312 5320 5330e 8528 5340, ShoreTel IP230, InterTel Aastra MiVoice Alcatel Lucent Nortel Norstar Meridian Gigaset Siemens ROLM Packet8 Fanvil. See more Compatible Telephone List in Description. NOT FOR CELL PHONES OR COMPUTERS. 【Crystal Clear Chat】RJ9 telephone headset for corded telephones offers excellent sound quality for natural listening experience, features Noise Cancelling Microphone to reduce background noise and provide high quality clear calls to the listener on the other end of the call. Wideband Audio delivers clearer conversations, while Acoustic Shock Protection Circuit protects your hearing. Less noise, Clearer voice. 【Super Durable & Comfortable】Ultra lightweight phone headphone is built for your comfort. Professional Hands-free wired telephone headphone with adjustable headband and soft leatherette ear cushion enhance all-day wearing experience. Precision design, quality plastics, unibody headband construction, flexible mic boom makes this RJ9 jack call center headset for landline telephone sturdier and more durable. Ideal for Call Center, Office, Home, Hospital, Insurance, Business, School, Bank. 【WARRANTY GUARANTEE & COMPATIBILITY NOTES】 Callez telephone headset offers 45 days money back & 24-month worry-free guarantee. THIS HEADSET DOESN’T WORK FOR SMARTPHONES AND COMPUTERS. ONLY COMPATIBLE with some specific phone models listed in description (include but not limited). For Other Landline Phones not listed, Please contact us for Compatibility Guide or Advice.