![Plantronics ENCOREPRO 540 (HW540) Wired Headset | For Nortel, Polycom, Cisco, Mitel, Avaya, ShoreTel and other business phones | Requires Adapter Plantronics ENCOREPRO 540 (HW540) Wired Headset | For Nortel, Polycom, Cisco, Mitel, Avaya, ShoreTel and other business phones | Requires Adapter](https://cdn11.bigcommerce.com/s-dc251/images/stencil/1280x1280/products/907/3906/hw540__52065.1457054632.png?c=2)
Plantronics ENCOREPRO 540 (HW540) Wired Headset | For Nortel, Polycom, Cisco, Mitel, Avaya, ShoreTel and other business phones | Requires Adapter
Plantronics Blackwire 3325 Wired Stereo Headset With Boom Mic (poly) - Connect To Pc / Mac Via Usb-a Or Mobile / Tablet Via 3.5 Mm Connector : Target
![Plantronics Encorepro Hw510 89433-01 Wired Headset, With Noise-canceling Microphone With Rj9 Plug For Avaya 2400 4600 Models - Earphones & Headphones - AliExpress Plantronics Encorepro Hw510 89433-01 Wired Headset, With Noise-canceling Microphone With Rj9 Plug For Avaya 2400 4600 Models - Earphones & Headphones - AliExpress](https://ae01.alicdn.com/kf/Hcbb0fffecc9e4062853bd385ce33ee12k/Plantronics-EncorePro-HW510-89433-01-Wired-Headset-with-Noise-Canceling-Microphone-with-RJ9-Plug-for-AVAYA.jpg_Q90.jpg_.webp)