Detailed comparison and review of Poly Blackwire 325-M and Poly Blackwire 325. With our comprehensive overview, you can simply compare design, sound quality, but also other key features of both headphones and easily decide which ones are the right choice for you. Our goal is to help you identify the main differences between products and find the headphones that best fit your needs and expectations.
| DESIGN AND DIMENSIONS | Poly Blackwire 325-M | Poly Blackwire 325 |
|---|
| Product Type | Headset - wired - USB, 3.5 mm jack | Headset - wired - USB, 3.5 mm jack | |
|---|---|---|---|
| Series | 300 Series | 300 Series | |
| Headband Material | Metal | Metal |
| SOUND QUALITY | Poly Blackwire 325-M | Poly Blackwire 325 |
|---|
| Headphones Form Factor | On-ear | On-ear | |
|---|---|---|---|
| Connectivity Technology | Wired | Wired | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 20 - 20000 Hz | 20 - 20000 Hz | Both headphones offer the same frequency response. |
| Features | SoundGuard Technology | SoundGuard Technology | |
| In-Cord Volume Control | Yes | Yes |
| MICROPHONE | Poly Blackwire 325-M | Poly Blackwire 325 |
|---|
| Type | Boom | Boom | |
|---|---|---|---|
| Frequency Response | 100 - 10000 Hz | 100 - 10000 Hz | The frequency response of the microphones in both headphones is the same. |
| REMOTE CONTROL | Poly Blackwire 325-M | Poly Blackwire 325 |
|---|
| Controls | Mute, volume, answer/end | Mute, volume, answer/end |
|---|
| CABLE | Poly Blackwire 325-M | Poly Blackwire 325 |
|---|
| Cable Type | Headset cable - 2.13 m | Headset cable - 2.13 m | |
|---|---|---|---|
| Cable Length | 2.13 m | 2.13 m |
| FEATURES | Poly Blackwire 325-M | Poly Blackwire 325 |
|---|
| Additional Functions | DSP | DSP |
|---|
| CONNECTIONS | Poly Blackwire 325-M | Poly Blackwire 325 |
|---|
| Connector Type | USB (4 PIN USB Type A) Headphones (mini-phone 3.5 mm 4-pole) |
USB (4 PIN USB Type A) Headphones (mini-phone 3.5 mm 4-pole) |
|---|
| OTHERS | Poly Blackwire 325-M | Poly Blackwire 325 |
|---|
| Service & Support | Limited warranty - 2 years | Limited warranty - 2 years |
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