Detailed comparison and review of Bowers & Wilkins PX7 S2 and Poly Blackwire 3225 (3300 Series). 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 | Bowers & Wilkins PX7 S2 | Poly Blackwire 3225 (3300 Series) |
|---|
| Product Type | Headphones - Bluetooth - wireless, wired - USB-C | Headset - wired - USB, 3.5 mm jack | |
|---|---|---|---|
| Series | - | 3300 Series | |
| Height | - | 17.8 cm | |
| Width | - | 15.5 cm | |
| Depth | - | 3.2 cm | |
| Weight | 307 g | 64 g | Poly Blackwire 3225 (3300 Series) are lighter than Bowers & Wilkins PX7 S2 headphones. |
| Dimensions & Weight Details | Case: 18.9 cm x 6.3 cm x 23.3 cm | - | |
| Colour | Black | Black | |
| Earpad Material | Memory foam | Artificial leather | |
| Recommended Use | - | Computer |
| SOUND QUALITY | Bowers & Wilkins PX7 S2 | Poly Blackwire 3225 (3300 Series) |
|---|
| Headphones Form Factor | Full size | On-ear | |
|---|---|---|---|
| Headphones Technology | Dynamic | - | |
| Adjustable Headband | - | Yes | |
| Connectivity Technology | Wireless, wired | 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 Active Noise Cancelling | SoundGuard | |
| Sound Output Mode | - | Stereo | |
| Sensitivity | - | 90 dB | |
| Impedance | - | 32 Ohm | |
| Diaphragm | Bio-cellulose - 40 mm | 28 mm | Bowers & Wilkins PX7 S2 have a thicker diaphragm than Poly Blackwire 3225 (3300 Series). |
| Features | Ambient Pass-Through | Digital signal processing, Dynamic EQ optimised | |
| In-Cord Volume Control | - | Yes |
| MICROPHONE | Bowers & Wilkins PX7 S2 | Poly Blackwire 3225 (3300 Series) |
|---|
| Form Factor | Built-in | - | |
|---|---|---|---|
| Type | - | Boom | |
| Microphone Operation Mode | - | Omni-directional | |
| Noise Cancelling | Yes | - | Bowers & Wilkins PX7 S2 microphone can cancel out ambient noise. |
| Frequency Response | - | 100 - 10000 Hz | |
| Sensitivity | - | -38 dBV/Pascal | |
| Microphones Included | 6 | - |
| REMOTE CONTROL | Bowers & Wilkins PX7 S2 | Poly Blackwire 3225 (3300 Series) |
|---|
| Controls | - | Mute, volume, answer/end, hold, redial |
|---|
| CABLE | Bowers & Wilkins PX7 S2 | Poly Blackwire 3225 (3300 Series) |
|---|
| Cable Type | USB-C to mini-phone 3.5 mm cable - detachable - 1.2 m USB-C to USB-C cable - detachable - 1.2 m |
USB-A cable | |
|---|---|---|---|
| Cable Length | 1.2 m | - | |
| Detachable Cable | Yes | - |
| FEATURES | Bowers & Wilkins PX7 S2 | Poly Blackwire 3225 (3300 Series) |
|---|
| Features | Wear detection | - |
|---|
| BATTERY AND CHARGING | Bowers & Wilkins PX7 S2 | Poly Blackwire 3225 (3300 Series) |
|---|
| 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 | Bowers & Wilkins PX7 S2 | Poly Blackwire 3225 (3300 Series) |
|---|
| Connector Type | Headphones (24 pin USB-C) | USB (4 PIN USB Type A) Headset (mini-phone stereo 3.5 mm) |
|---|
| OTHERS | Bowers & Wilkins PX7 S2 | Poly Blackwire 3225 (3300 Series) |
|---|
| Included Accessories | Carrying case, 3.5 mm to USB-C cable, USB-C to USB-C cable | - | |
|---|---|---|---|
| Compatibility | - | Mac, Windows | |
| Software Certification | - | Skype Certified, Avaya Certified, Cisco Jabber Certified | |
| Supported Host Device OS | - | Windows 10, macOS, Windows 11 | |
| Service & Support | Limited warranty - 2 years | - |
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