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Logitech H650e Mono Black
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Plantronics Blackwire 3220 On-ear Black
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Technical Specifications
| Acoustic System Name | Closed Back | Closed Back | |
| Boom Microphone | Yes | Yes | |
| Cable Length | 1.8 m | 2.25 m | |
| Carrying Case | Yes | - | |
| Colour of Product | Black | Black | |
| Connectivity Technology | Wired | Wired | |
| Depth | 50 mm | - | |
| Ear Coupling | On-ear | On-ear | |
| Ear Coupling - On-ear | Yes | Yes | |
| Headphone Frequency | 20 - 20000 Hz | 20 - 20000 Hz | |
| Headphone or Headset | Headset | Headset | |
| Headphone Sensitivity | 90 dB | - | |
| Headset Type | Single Ear | Dual Ear | |
| Height | 173 mm | - | |
| Impedance | 15 Ω (Ohms) | - | |
| Mac Operating Systems Supported | Mac OS Version 10.x | - | |
| Microphone Frequency | 40 - 18000 Hz | 100 - 10000 Hz | |
| Microphone Number | 1 | 1 | |
| Microphone Sensitivity | -45 dB | - | |
| Multi-function Control - Position | On cable | On cable | |
| Multi-function Control - Type | Digital | Digital | |
| Multi-function Control Present | Yes | Yes | |
| Noise Reduction | - | Yes | |
| Purpose | Call center/Office | Call center/Office | |
| USB Connectivity | Yes | Yes | |
| USB Port - Type | A | C | |
| USB Port - Type A | Yes | - | |
| USB Port - Type C | - | Yes | |
| Volume Control Present | Yes | Yes | |
| Volume Control Type | Digital | Digital | |
| Wearing Style | Head-band | Head-band | |
| Weight | 100 g | 118 g | |
| Width | 164 mm | - | |
| Windows Operating Systems Supported | Windows Vista, Windows 7, Windows 8 | Y |
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