MAIRDI Telephone Headset with Microphone Noise Canceling, Binaural Call Center Office Headphone with RJ9 Jack & 3.5mm Connector for Landline Phone Cell Phone PC Laptop, Work for Polycom Avaya Nortel

Super Comfort telephone headset for offices/call centers/home phones with great durability and ultra good noise cancelling mic, fully rival with Plantronics and Jabra expensive models.

Aastra:390,470,480e,480i,53i,55i,57i,57iCT,6725i,6753i,6755i,6757i,8004,8009,8314,8324,9009,9216,9112i,9133i,9143i,9316cw,9417cw,9480i

Alcatel:4004,4010,4018,4019,4020,4022,4035,4037

AltiGen:500,510,600,705,710

ATCOM:R4,R3,R2,R1,AT840,AT820,AT810,AT800

AudioCodes:420HD

Avaya:1220,1230,1408,1416,1603,2400,2410,2420,4610,4620,4621,4622,4624,4625,4626,4630,5410,5420,5601,5602,5610,5620,5621,5625,6210,6408,6408+,6408D+,6211,6218,6219,6220,6221,6402,6402D,6410D+M,6414,6416,6416D+M,6424,6424D+,8101,8102,8110,8400,8403,8405,8406,8410,8434D,X,8503,8510,8520,8528T,9404,9406,9408,9410,9504,9508

Ericsson-LG: 8501,8515,8540,8815,8820,8830,8840,LIP8012D,8024D,8040L

Inter-Tel:8520,8560,8600,8620,8660,8662,8690,Encore ECX1000,ECX2000

Mitel SuperSet: 4001,4015,4025,4125,4120,4150,401,410,420,430,700,7000

Mitel:5000,5010,5020,5040,5055,5140,5201,5205,5207,5210,5212,5215,5220,5224,5230,5235,5240,5250,5312,5324,5330,5340,5550

Nortel:M3903,M3904,M3905,M5208,M5209,M5216,M5317,M8001,M8003,T7316,T7316E,M7310,M7208,M7308,M7316,M7324,M7900,M2216,SL100 NTZK23AA,AB:(M2216):ACDI,1120EIP

Plantronics:T10,T110

Polycom:CX100,CX200,CX300,CX500,CX600,CX700300, 301,335,400,430,450,500(rev.Eorlater),501,550,560,600,601,650,670

Siemens: Optiset Advance Plus + Headset Adapter, Comfort 300E + Headset Adapter, F300E, Optipoint 410 Advance, 410 Standard, 420 Advance, 420 Standard, 500 Advance, 500 Basic, Opt

Snom:300