In depth comparison and review of Poly Blackwire 8225-M and EPOS I SENNHEISER C20. Compare design, audio features, functions and other important specifications to easily choose the right headphones for you. Our goal is to help you uncover differences between the products and find the headphones that will best fit your needs.
| DESIGN AND DIMENSIONS | Poly Blackwire 8225-M | EPOS I SENNHEISER C20 |
|---|
| Product Type | Headset - wired - USB-A | Headset - Bluetooth - wireless - USB-A via Bluetooth adapter | |
|---|---|---|---|
| Series | - | C-series | |
| Height | - | 20 cm | |
| Width | - | 16.5 cm | |
| Depth | - | 5.8 cm | |
| Weight | 186 g | 200 g | Poly Blackwire 8225-M are lighter than Poly Blackwire 8225-M headphones. |
| Colour | - | Black | |
| Bluetooth Range (Operating Distance) | - | 25 m |
| SOUND QUALITY | Poly Blackwire 8225-M | EPOS I SENNHEISER C20 |
|---|
| Headphones Form Factor | On-ear | On-ear | |
|---|---|---|---|
| Headphones Technology | - | Dynamic | |
| Adjustable Headband | Yes | - | |
| Connectivity Technology | Wired | Wireless | |
| Wireless Technology | - | Bluetooth | |
| Active Noise Cancelling | Yes | - | Poly Blackwire 8225-M are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | Hybrid ANC | - | |
| Sound Output Mode | - | Stereo | |
| Frequency Response | 20 - 20000 Hz | - | |
| Total Harmonic Distortion (THD) | - | 3% | |
| Sensitivity | 84 dB | - | |
| Impedance | 32 Ohm | - | |
| Diaphragm | 32 mm | - | |
| Features | SoundGuard DIGITAL Technology | EPOS BrainAdapt Technology |
| MICROPHONE | Poly Blackwire 8225-M | EPOS I SENNHEISER C20 |
|---|
| Type | Boom | Boom | |
|---|---|---|---|
| Noise Cancelling | Yes | - | Poly Blackwire 8225-M microphone can cancel out ambient noise. |
| Frequency Response | 100 - 10000 Hz | - | |
| Sensitivity | -35 dBV/Pascal | - |
| REMOTE CONTROL | Poly Blackwire 8225-M | EPOS I SENNHEISER C20 |
|---|
| Controls | Mute, volume, answer/end, Microsoft Teams button | - |
|---|
| CABLE | Poly Blackwire 8225-M | EPOS I SENNHEISER C20 |
|---|
| Cable Type | Headset cable - 2.2 m | - | |
|---|---|---|---|
| Cable Length | 2.2 m | - |
| BATTERY AND CHARGING | Poly Blackwire 8225-M | EPOS I SENNHEISER C20 |
|---|
| Battery Type | - | Headset battery rechargeable | |
|---|---|---|---|
| Standby Time | - | 300 hours | |
| Charging Time | - | 2 hour(s) |
| CONNECTIONS | Poly Blackwire 8225-M | EPOS I SENNHEISER C20 |
|---|
| Connector Type | Headset (4 PIN USB Type A) | - |
|---|
| OTHERS | Poly Blackwire 8225-M | EPOS I SENNHEISER C20 |
|---|
| Included Accessories | - | Carrying case, charging cable, BTD 800 USB dongle | |
|---|---|---|---|
| Service & Support | - | Limited warranty - 2 years |
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