Side by side comparison and review of Marshall Monitor Bluetooth and Poly Blackwire 325. 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 | Marshall Monitor Bluetooth | Poly Blackwire 325 |
|---|
| Product Type | Headphones - Bluetooth - wireless, wired - 3.5 mm jack | Headset - wired - USB, 3.5 mm jack | |
|---|---|---|---|
| Series | - | 300 Series | |
| Colour | Black | - | |
| Headband Material | - | Metal |
| SOUND QUALITY | Marshall Monitor Bluetooth | Poly Blackwire 325 |
|---|
| Headphones Form Factor | Full size | On-ear | |
|---|---|---|---|
| Foldable | Yes | - | Marshall Monitor Bluetooth can be folded. |
| Connectivity Technology | Wireless, wired | Wired | |
| Wireless Technology | Bluetooth | - | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 10 - 20000 Hz | 20 - 20000 Hz | Marshall Monitor Bluetooth offer a larger frequency range than Poly Blackwire 325. |
| Sensitivity | 92 dB | - | |
| Impedance | 28 Ohm | - | |
| Diaphragm | 40 mm | - | |
| Features | Bluetooth aptX technology | SoundGuard Technology | |
| In-Cord Volume Control | - | Yes |
| MICROPHONE | Marshall Monitor Bluetooth | Poly Blackwire 325 |
|---|
| Type | - | Boom | |
|---|---|---|---|
| Frequency Response | - | 100 - 10000 Hz | |
| Microphones Included | 2 | - |
| REMOTE CONTROL | Marshall Monitor Bluetooth | Poly Blackwire 325 |
|---|
| Controls | Answer/end | Mute, volume, answer/end |
|---|
| CABLE | Marshall Monitor Bluetooth | Poly Blackwire 325 |
|---|
| Cable Type | Headphones cable - detachable | Headset cable - 2.13 m | |
|---|---|---|---|
| Cable Length | - | 2.13 m |
| FEATURES | Marshall Monitor Bluetooth | Poly Blackwire 325 |
|---|
| Additional Functions | - | DSP |
|---|
| BATTERY AND CHARGING | Marshall Monitor Bluetooth | Poly Blackwire 325 |
|---|
| Battery Life | 30 hour(s) | - |
|---|
| CONNECTIONS | Marshall Monitor Bluetooth | Poly Blackwire 325 |
|---|
| Connector Type | Headphones (mini-phone stereo 3.5 mm 4-pole) | USB (4 PIN USB Type A) Headphones (mini-phone 3.5 mm 4-pole) |
|---|
| OTHERS | Marshall Monitor Bluetooth | Poly Blackwire 325 |
|---|
| Included Accessories | USB charging cable, carrying bag | - | |
|---|---|---|---|
| Service & Support | - | Limited warranty - 2 years |
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