Side by side comparison and review of Poly Blackwire 325 and Poly Blackwire 3320-M. Compare design, sound quality and other key specifications and features to simplify the choice of your perfect headphones. Our goal is to make it easier for you to decide on the headphones that will best meet your expectations by revealing the main differences between the products.
| DESIGN AND DIMENSIONS | Poly Blackwire 325 | Poly Blackwire 3320-M |
|---|
| Product Type | Headset - wired - USB, 3.5 mm jack | Headset - wired - USB-C | |
|---|---|---|---|
| Series | 300 Series | Blackwire 3300 series | |
| Height | - | 17.8 cm | |
| Width | - | 15.5 cm | |
| Depth | - | 3.2 cm | |
| Weight | - | 130 g | |
| Colour | - | Black | |
| Earpad Material | - | Foam | |
| Headband Material | Metal | - | |
| Recommended Use | - | Portable electronics, computer |
| SOUND QUALITY | Poly Blackwire 325 | Poly Blackwire 3320-M |
|---|
| Headphones Form Factor | On-ear | On-ear | |
|---|---|---|---|
| Adjustable Headband | - | Yes | |
| Connectivity Technology | Wired | Wired | |
| Active Noise Cancelling | - | Yes | Poly Blackwire 3320-M are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | - | SoundGuard | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 20 - 20000 Hz | 20 - 20000 Hz | Both headphones offer the same frequency response. |
| Sensitivity | - | 116 dB | |
| Impedance | - | 32 Ohm | |
| Max Sound Pressure | - | 118 dB | |
| Diaphragm | - | 32 mm | |
| Features | SoundGuard Technology | Dynamic EQ optimised | |
| In-Cord Volume Control | Yes | Yes |
| MICROPHONE | Poly Blackwire 325 | Poly Blackwire 3320-M |
|---|
| Type | Boom | Boom | |
|---|---|---|---|
| Frequency Response | 100 - 10000 Hz | 100 - 10000 Hz | The frequency response of the microphones in both headphones is the same. |
| Sensitivity | - | -38 dB |
| REMOTE CONTROL | Poly Blackwire 325 | Poly Blackwire 3320-M |
|---|
| Controls | Mute, volume, answer/end | Mute, volume, answer/end |
|---|
| CABLE | Poly Blackwire 325 | Poly Blackwire 3320-M |
|---|
| Cable Type | Headset cable - 2.13 m | - | |
|---|---|---|---|
| Cable Length | 2.13 m | - |
| FEATURES | Poly Blackwire 325 | Poly Blackwire 3320-M |
|---|
| Additional Functions | DSP | - |
|---|
| CONNECTIONS | Poly Blackwire 325 | Poly Blackwire 3320-M |
|---|
| Connector Type | USB (4 PIN USB Type A) Headphones (mini-phone 3.5 mm 4-pole) |
USB (24 pin USB-C) |
|---|
| OTHERS | Poly Blackwire 325 | Poly Blackwire 3320-M |
|---|
| Compatibility | - | Mac, Windows | |
|---|---|---|---|
| Software Certification | - | Certified for Microsoft Teams | |
| Supported Host Device OS | - | Windows 10, macOS | |
| Service & Support | Limited warranty - 2 years | - |
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