Do you have a question about the Plantronics SupraPlus H251 and is the answer not in the manual?
Details transmit sensitivity, frequency range, DC range, noise cancellation, and output impedance.
Details receive sensitivity, frequency range, acoustic limit, and input impedance.
Lists various SupraPlus headset models and their associated part numbers.
Details transmit sensitivity, frequency range, DC range, noise cancellation, and output impedance.
Details receive sensitivity, frequency range, acoustic limit, and input impedance.
Lists various SupraPlus headset models and their associated part numbers.
| Type | Wired |
|---|---|
| Wearing Style | Over-the-head |
| Connectivity | Wired |
| Microphone | Yes |
| Earpiece | Single |
| Connector | 3.5mm |
| Ear Cushion Type | Foam |
| Impedance | 32 Ohms |
| Microphone Type | Noise-canceling |
| Sensitivity | 94 dB |
| Cable Length | 2.1 meters |












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