Comdio Callez Wired Telephone Headset Binaural, RJ9 Headset with Noise Cancelling Boom Mic, Compatible for Plantronics T10 NEC DT300 Avaya 1416 Mitel ShoreTel 480 Polycom Landline Deskphones (C402A3)

Direct connect over the head headset is ideal for some specific Telephones with Modular RJ Headset jack COMPATIBLE PHONE LIST: BUY ONLY IF YOU ONE OF THE PHONE MODELS IN LIST Plantronics: A100 S10 S11 S12 S50 T10 T20 T50 T100 T110 SP-02 SP-04 SP-05 A100 T50 T100 PLX-400 PLX-500 Plantronics Starbase 2010 AEKJ 72810R NEC: Electra Elite IPK Dterm Series E models DTU-8 DTU-8D DTU-16 DTU-16D DTU-32 DTU-32D DTP-8 DTP-8D DTP-16 DTP-16D DTP-32 DTP-32D DTH-8 DTH-8D DTH-16 DTH-16D DTH-32 DTH-32D DT300 DT310 DT330 DT400 DT700 DT730 DT750 DT770 DTR-16D-1G SL1000 Dterm Series i DSX DTL DTP DTR DTU SERIES PHONES Aspire AVAYA / Lucent: 6402D 6408D+ 6416D+M 6424D+M 8403 8410D 8434DX 4406D+ 4412D+ 4424D+ 4424LD+ 1120 1140 1140E 1165 1210 1220 1230 1408 1416 2410 2420 4610 4610SW 4612 4620 4620SW 4621 4621SW 4622 4622SW 4625 4625W 4630 4630SW 5402 5410 5420 5610 562056215625 9404 9406 9408 9504 9508 DT1 DT3 DT5 QE4610 Mitel 5000 5010 5020 5040 5055 5140 5201 5205 5207 5210 5212 5215 5220 5224 5230 5235 5240 5250 5312 5324 5330 5340 5550 SuperSet 4015 4025 4125 4150 models Mitel 5320 IP 8520 8662 5360 ShoreTel Phone: IP100 IP212 IP212K IP230 IP265 IP530 IP560 IP560G IP565 IP565G IP655 420 480 480G 485 Polycom SoundPoint 300 301 335 430 450 500 (rev. E or later) 501 550 560 600 601 650 670 CX300 CX500 CX600 CX700 VVX101 VVX300 VVX310 VVX400 VVX410 VVX500 VVX600 VVX1500 with a dedicated headset jack Siemens/ROLM: Optiset E Series with CA or HA option modules Optiset E Advance Optiset Advance Plus+ Headset Adapter Comfort 300E+ Headset Adapter Comfort F300E Adtran IP Phone: IP321 331 430 650 670 Alcatel-Lucent: 4004 4020 4022 4035 4037 Telephones AltiGen