Detailed comparison and review of Sennheiser HD 4.20s and Poly Blackwire C725-UC. 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 C725-UC |
|---|
| Product Type | Headphones - wired - 3.5 mm jack | Headset - wired - USB | |
|---|---|---|---|
| Series | - | 700 Series | |
| Colour | Black | - | |
| Recommended Use | - | Computer |
| SOUND QUALITY | Sennheiser HD 4.20s | Poly Blackwire C725-UC |
|---|
| Headphones Form Factor | Full size | On-ear | |
|---|---|---|---|
| Ear Cups Type | Closed | - | |
| Connectivity Technology | Wired | Wired | |
| Active Noise Cancelling | - | Yes | Poly Blackwire C725-UC are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | - | SoundGuard | |
| Noise Isolating | Yes | - | Sennheiser HD 4.20s are equipped with a noise isolating function. |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | - | 20 - 20000 Hz | |
| In-Cord Volume Control | - | Yes |
| MICROPHONE | Sennheiser HD 4.20s | Poly Blackwire C725-UC |
|---|
| Form Factor | - | Headset microphone | |
|---|---|---|---|
| Type | On-cable | Boom | |
| Microphone Operation Mode | Omni-directional | - | |
| Frequency Response | - | 100 - 8000 Hz | |
| Sensitivity | -44 dBV/Pascal | - |
| REMOTE CONTROL | Sennheiser HD 4.20s | Poly Blackwire C725-UC |
|---|
| Controls | 1-button remote | Mute, volume, answer/end |
|---|
| CABLE | Sennheiser HD 4.20s | Poly Blackwire C725-UC |
|---|
| Cable Type | - | USB cable - 2.04 m | |
|---|---|---|---|
| Cable Length | 1.4 m | 2.04 m | |
| Plated Connector | Gold | - |
| CONNECTIONS | Sennheiser HD 4.20s | Poly Blackwire C725-UC |
|---|
| Connector Type | Headphones (mini-phone 3.5 mm 4-pole) | USB (4 PIN USB Type A) |
|---|
| OTHERS | Sennheiser HD 4.20s | Poly Blackwire C725-UC |
|---|
| Included Accessories | - | Carrying case | |
|---|---|---|---|
| Service & Support | Limited warranty - parts and labour - 2 years | Limited warranty - 2 years |
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