Side by side comparison and review of Poly Blackwire 8225-M and Sennheiser ACCENTUM Wireless. 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 | Poly Blackwire 8225-M | Sennheiser ACCENTUM Wireless |
|---|
| Product Type | Headset - wired - USB-A | Headphones - Bluetooth - wireless | |
|---|---|---|---|
| Weight | 186 g | 222 g | Poly Blackwire 8225-M are lighter than Poly Blackwire 8225-M headphones. |
| Colour | - | Black |
| SOUND QUALITY | Poly Blackwire 8225-M | Sennheiser ACCENTUM Wireless |
|---|
| Headphones Form Factor | On-ear | Full size binaural | |
|---|---|---|---|
| Headphones Technology | - | Dynamic | |
| Adjustable Headband | Yes | Yes | |
| Connectivity Technology | Wired | Wireless | |
| Wireless Technology | - | Bluetooth | |
| Bluetooth Version | - | Bluetooth 5.2 | |
| Bluetooth Profiles | - | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP), Generic Attribute Profile (GATT) | |
| Bluetooth Audio Codec | - | SBC, AAC, aptX HD, mSBC, CVSD | |
| Active Noise Cancelling | Yes | Yes | Both headphones are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | Hybrid ANC | Hybrid ANC | |
| Sound Output Mode | - | Stereo | |
| Frequency Response | 20 - 20000 Hz | 10 - 22000 Hz | Sennheiser ACCENTUM Wireless offer a larger frequency range than Poly Blackwire 8225-M. |
| Total Harmonic Distortion (THD) | - | 0.3% | |
| Sensitivity | 84 dB | 106 dB | Sennheiser ACCENTUM Wireless have higher sensitivity than Poly Blackwire 8225-M. |
| Impedance | 32 Ohm | - | |
| Diaphragm | 32 mm | 37 mm | Sennheiser ACCENTUM Wireless have a thicker diaphragm than Poly Blackwire 8225-M. |
| Features | SoundGuard DIGITAL Technology | - |
| MICROPHONE | Poly Blackwire 8225-M | Sennheiser ACCENTUM Wireless |
|---|
| Form Factor | - | Built-in | |
|---|---|---|---|
| Type | Boom | - | |
| Microphone Operation Mode | - | Beamforming | |
| Noise Cancelling | Yes | - | Poly Blackwire 8225-M microphone can cancel out ambient noise. |
| Frequency Response | 100 - 10000 Hz | 50 - 8000 Hz | Poly Blackwire 8225-M offer a larger microphone frequency range than Sennheiser ACCENTUM Wireless. |
| Sensitivity | -35 dBV/Pascal | - |
| REMOTE CONTROL | Poly Blackwire 8225-M | Sennheiser ACCENTUM Wireless |
|---|
| Controls | Mute, volume, answer/end, Microsoft Teams button | - |
|---|
| CABLE | Poly Blackwire 8225-M | Sennheiser ACCENTUM Wireless |
|---|
| Cable Type | Headset cable - 2.2 m | USB-C charge cable - detachable | |
|---|---|---|---|
| Cable Length | 2.2 m | - |
| BATTERY AND CHARGING | Poly Blackwire 8225-M | Sennheiser ACCENTUM Wireless |
|---|
| Battery Type | - | Headphone battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Capacity | - | 800 mAh | |
| Battery Life | - | 50 hour(s) | |
| Charging Time | - | 3 hour(s) |
| WIRELESS LINK | Poly Blackwire 8225-M | Sennheiser ACCENTUM Wireless |
|---|
| Modulation Type | - | GFSK, 8-DPSK, 4-DQPSK | |
|---|---|---|---|
| Radio Frequency Range | - | 2.402 - 2.480GHz |
| CONNECTIONS | Poly Blackwire 8225-M | Sennheiser ACCENTUM Wireless |
|---|
| Connector Type | Headset (4 PIN USB Type A) | - |
|---|
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