Poly S55255089
A wired 131g on-ear design with 32mm drivers and a noise-canceling boom mic uses SoundGuard DIGITAL to cap sudden volume spikes at 118 dBA for hearing safety. Plug-and-play USB-C with an included USB-A adapter and one-touch call controls simplify PC/Mac operation, while Dynamic EQ tunes voice for wideband telephony. It suits desk-bound professionals logging full days on conference calls who prioritize clear vocal capture and ear protection over mobility.
form factor on-ear
driver size mm 32
impedance ohms 32
39 Overall Score
Price €37
Snapshot
The proof
Performance
Specifications
Full Specifications
Design
| Form Factor | on-ear |
| Weight | 0.1 kg / 0.3 lbs |
| Ear Cushion | Foam |
| Headband | padded |
Audio
| Driver Size | 32 |
| Drivers | 1 |
| Freq Min | 20 |
| Freq Max | 20000 |
| Impedance | 32 |
| Sensitivity | 94 |
| Codecs | Poly Blackwire 3320 Stereo USB-C Headset +USB-C/A Adapter - Stereo - USB Type C, Mini-phone (3.5mm) - Wired - 32 Ohm - On-ear - Binaural - Ear-cup - 7.10 ft Cable - Omni-directional Microphone - Black |
| Surround | 7.1 Virtual Surround |
Connectivity
| Wireless | No |
| Wired Connector | USB-C |
| Cable Length | 2.18 |
Microphone
| Microphone | Yes |
| NC Mic | Yes |
| Boom Mic | Yes |
| Mic Pattern | Omnidirectional |
Features
| Touch Controls | Yes |
| App | Poly Lens |
vs Competition
| Spec | Poly S55255089 | Sony ULT WEAR WHULT900N/B | Soundcore Life Q20 | TOZO HT3 | JBL Live 770NC | Truefree HF-10 |
|---|---|---|---|---|---|---|
| Form Factor | on-ear | over-ear | over-ear | over-ear | over-ear | over-ear |
| Driver Type | - | dynamic | dynamic | dynamic | dynamic | dynamic |
| Driver Size (mm) | 32 | 40 | 40 | 40 | 40 | 40 |
| Impedance Ohms | 32 | 314 | 16 | 16 | 32 | 20 |
| Wireless | false | true | true | true | true | true |
| Active Noise Cancellation | - | true | true | true | true | true |
| Open Closed Back | - | closed | closed | closed | closed | closed |
| Bluetooth Version | - | 5.2 | 5.0 | 6.0 | 5.3 | 6.0 |
| Battery Life Hours | - | 30 | 60 | 90 | 65 | 125 |
| Compare | Compare | Compare | Compare | Compare |
| Product | Anc | Mic | Build | Sound | Battery | Comfort | Connectivity | Social Proof |
|---|---|---|---|---|---|---|---|---|
| Poly S55255089 | 33.6 | 93.5 | 37.9 | 68.9 | 52.6 | 74.8 | 67 | 27.2 |
| Sony ULT WEAR WHULT900N/B Compare | 98.5 | 89.4 | 81.4 | 96.9 | 82.1 | 62.2 | 99.2 | 89.6 |
| Soundcore Life Q20 Compare | 95.2 | 89.4 | 89.7 | 100 | 93.1 | 91 | 91.7 | 89.6 |
| TOZO HT3 Compare | 92 | 89.4 | 96.3 | 99.2 | 98.1 | 62.2 | 97.7 | 95 |
| JBL Live 770NC Compare | 98.5 | 84.9 | 93.8 | 89.3 | 94.6 | 62.2 | 100 | 95 |
| Truefree HF-10 Compare | 95.2 | 89.4 | 96.3 | 87.2 | 99.8 | 85.8 | 96.4 | 95 |
Price
Value & Pricing
From €37
