Detailed comparison and review of Sennheiser HD 4.20s 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 | Sennheiser HD 4.20s | Poly Blackwire 325 |
|---|
| Product Type | Headphones - wired - 3.5 mm jack | Headset - wired - USB, 3.5 mm jack | |
|---|---|---|---|
| Series | - | 300 Series | |
| Colour | Black | - | |
| Headband Material | - | Metal |
| SOUND QUALITY | Sennheiser HD 4.20s | Poly Blackwire 325 |
|---|
| Headphones Form Factor | Full size | On-ear | |
|---|---|---|---|
| Ear Cups Type | Closed | - | |
| Connectivity Technology | Wired | Wired | |
| Noise Isolating | Yes | - | Sennheiser HD 4.20s are equipped with a noise isolating function. |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | - | 20 - 20000 Hz | |
| Features | - | SoundGuard Technology | |
| In-Cord Volume Control | - | Yes |
| MICROPHONE | Sennheiser HD 4.20s | Poly Blackwire 325 |
|---|
| Type | On-cable | Boom | |
|---|---|---|---|
| Microphone Operation Mode | Omni-directional | - | |
| Frequency Response | - | 100 - 10000 Hz | |
| Sensitivity | -44 dBV/Pascal | - |
| REMOTE CONTROL | Sennheiser HD 4.20s | Poly Blackwire 325 |
|---|
| Controls | 1-button remote | Mute, volume, answer/end |
|---|
| CABLE | Sennheiser HD 4.20s | Poly Blackwire 325 |
|---|
| Cable Type | - | Headset cable - 2.13 m | |
|---|---|---|---|
| Cable Length | 1.4 m | 2.13 m | |
| Plated Connector | Gold | - |
| FEATURES | Sennheiser HD 4.20s | Poly Blackwire 325 |
|---|
| Additional Functions | - | DSP |
|---|
| CONNECTIONS | Sennheiser HD 4.20s | Poly Blackwire 325 |
|---|
| Connector Type | Headphones (mini-phone 3.5 mm 4-pole) | USB (4 PIN USB Type A) Headphones (mini-phone 3.5 mm 4-pole) |
|---|
| OTHERS | Sennheiser HD 4.20s | Poly Blackwire 325 |
|---|
| Service & Support | Limited warranty - parts and labour - 2 years | Limited warranty - 2 years |
|---|
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