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Tecstor Africa
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The Poly Blackwire 3220 Stereo USB-C Headset in bulk packaging is a business-ready wired headset built for clarity, comfort, and flexibility. It delivers rich stereo audio for both calls and multimedia, and includes a USB-C connection with an attached USB-A adapter for seamless use with a wide range of devices.
Engineered for long hours of use, this headset features a durable yet lightweight metal headband and soft, fold-flat leatherette ear cushions that make storage and transportation a breeze. A noise-canceling microphone and built-in Dynamic EQ ensure clear conversations, while Sound Guard helps protect your ears from sudden volume spikes. Intuitive inline controls let you manage calls, adjust volume, and mute with ease. Plus, with a robust two-year warranty and UC certifications, it's ready for busy office deployments.
Specification Field | Value |
Compatibility | USB-C headset with tethered USB-A adapter; works with Windows/macOS; certified for Skype for Business, Cisco Jabber, Avaya, UC platforms; manageable via Poly Lens/Plantronics Hub |
Color | Black |
Boom mic length (mm) | 130 mm |
Sensitivity (microphone) | –38 dBV/Pa |
Signal-to-noise ratio | 118 dB |
Impedance | 32 Ω |
Cable length | Inline to headset: 1.95 ft; USB to inline: 2.95 ft; Total: 6.81 ft (2.08 m) |
Button user controls | Inline: call answer/end, mute, volume up/down, hold, redial |
Headphone type | On-ear stereo |
Sensitivity (speaker) | 6 dB RLR (approx.)—value from spec sheet |
Microphone type | Noise-canceling boom |
Speaker bandwidth | Speech mode: 200–6,800 Hz; Media mode: 20–20,000 Hz |
Microphone bandwidth | 100–10,000 Hz |
Boom mic rotation | 270° rotation |
Ear cushions | Foam leatherette |
Compatible Operating Systems | Windows 10, 11; macOS |
Acoustic protection technology | Sound Guard DIGITAL |
Dimensions (W × D × H) | 155 × 32 × 178 mm (6.1 × 1.3 × 7.0 in) |
Speaker size | 28 mm driver |
Package dimensions (W × D × H) | 178 × 254 × 10 mm |
Pallet dimensions (W × D × H) | 101.6 × 121.9 × 131.9 cm |
Cartons per layer | 4 |
Weight | 119 g with cable; 92 g without cable |
Package weight | 300 g |
Connectivity technology | Wired USB-C with USB-A adapter; QD compatible via inline adapter |
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