Detailed comparison and review of Poly Blackwire 8225-M and Bowers & Wilkins PX7 S2. 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 | Poly Blackwire 8225-M | Bowers & Wilkins PX7 S2 |
|---|
| Product Type | Headset - wired - USB-A | Headphones - Bluetooth - wireless, wired - USB-C | |
|---|---|---|---|
| Weight | 186 g | 307 g | Poly Blackwire 8225-M are lighter than Poly Blackwire 8225-M headphones. |
| Dimensions & Weight Details | - | Case: 18.9 cm x 6.3 cm x 23.3 cm | |
| Colour | - | Black | |
| Earpad Material | - | Memory foam |
| SOUND QUALITY | Poly Blackwire 8225-M | Bowers & Wilkins PX7 S2 |
|---|
| Headphones Form Factor | On-ear | Full size | |
|---|---|---|---|
| Headphones Technology | - | Dynamic | |
| Adjustable Headband | Yes | - | |
| Connectivity Technology | Wired | Wireless, wired | |
| 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, aptX HD, aptX Adaptive | |
| Active Noise Cancelling | Yes | Yes | Both headphones are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | Hybrid ANC | Hybrid Active Noise Cancelling | |
| Frequency Response | 20 - 20000 Hz | - | |
| Sensitivity | 84 dB | - | |
| Impedance | 32 Ohm | - | |
| Diaphragm | 32 mm | Bio-cellulose - 40 mm | Bowers & Wilkins PX7 S2 have a thicker diaphragm than Poly Blackwire 8225-M. |
| Features | SoundGuard DIGITAL Technology | Ambient Pass-Through |
| MICROPHONE | Poly Blackwire 8225-M | Bowers & Wilkins PX7 S2 |
|---|
| Form Factor | - | Built-in | |
|---|---|---|---|
| Type | Boom | - | |
| Noise Cancelling | Yes | Yes | The microphones on both headphones can cancel out ambient noise. |
| Frequency Response | 100 - 10000 Hz | - | |
| Sensitivity | -35 dBV/Pascal | - | |
| Microphones Included | - | 6 |
| REMOTE CONTROL | Poly Blackwire 8225-M | Bowers & Wilkins PX7 S2 |
|---|
| Controls | Mute, volume, answer/end, Microsoft Teams button | - |
|---|
| CABLE | Poly Blackwire 8225-M | Bowers & Wilkins PX7 S2 |
|---|
| Cable Type | Headset cable - 2.2 m | USB-C to mini-phone 3.5 mm cable - detachable - 1.2 m USB-C to USB-C cable - detachable - 1.2 m |
|
|---|---|---|---|
| Cable Length | 2.2 m | 1.2 m | |
| Detachable Cable | - | Yes |
| FEATURES | Poly Blackwire 8225-M | Bowers & Wilkins PX7 S2 |
|---|
| Features | - | Wear detection |
|---|
| BATTERY AND CHARGING | Poly Blackwire 8225-M | Bowers & Wilkins PX7 S2 |
|---|
| Battery Type | - | Headphone battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Life | - | 30 hour(s) | |
| Battery Life Details | - | Continuous playback: up to 30 hours Continuous playback (with 15 min charge): up to 7 hours |
|
| Charging Time | - | 2 hour(s) |
| CONNECTIONS | Poly Blackwire 8225-M | Bowers & Wilkins PX7 S2 |
|---|
| Connector Type | Headset (4 PIN USB Type A) | Headphones (24 pin USB-C) |
|---|
| OTHERS | Poly Blackwire 8225-M | Bowers & Wilkins PX7 S2 |
|---|
| Included Accessories | - | Carrying case, 3.5 mm to USB-C cable, USB-C to USB-C cable | |
|---|---|---|---|
| Service & Support | - | Limited warranty - 2 years |
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