| Headset | Ears | Noise Cancelling | Wideband |
|---|---|---|---|
| Plantronics HW251 | HW510V - Voice Tube HW510 - Noise Cancelling |
✘ | ✔ |
| Plantronics HW251N | HW510V - Voice Tube HW510 - Noise Cancelling |
✔ | ✔ |
| Plantronics HW261 | HW520V - Voice Tube HW520 - Noise Cancelling |
✘ | ✔ |
| Plantronics HW261N | Noise Cancelling | ✔ | ✔ |