Detailed comparison and review of Poly Blackwire 325 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 325 | Bowers & Wilkins PX7 S2 |
|---|
| Product Type | Headset - wired - USB, 3.5 mm jack | Headphones - Bluetooth - wireless, wired - USB-C | |
|---|---|---|---|
| Series | 300 Series | - | |
| Weight | - | 307 g | |
| Dimensions & Weight Details | - | Case: 18.9 cm x 6.3 cm x 23.3 cm | |
| Colour | - | Black | |
| Earpad Material | - | Memory foam | |
| Headband Material | Metal | - |
| SOUND QUALITY | Poly Blackwire 325 | Bowers & Wilkins PX7 S2 |
|---|
| Headphones Form Factor | On-ear | Full size | |
|---|---|---|---|
| Headphones Technology | - | Dynamic | |
| 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 | Bowers & Wilkins PX7 S2 are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | - | Hybrid Active Noise Cancelling | |
| Sound Output Mode | Stereo | - | |
| Frequency Response | 20 - 20000 Hz | - | |
| Diaphragm | - | Bio-cellulose - 40 mm | |
| Features | SoundGuard Technology | Ambient Pass-Through | |
| In-Cord Volume Control | Yes | - |
| MICROPHONE | Poly Blackwire 325 | Bowers & Wilkins PX7 S2 |
|---|
| Form Factor | - | Built-in | |
|---|---|---|---|
| Type | Boom | - | |
| Noise Cancelling | - | Yes | Bowers & Wilkins PX7 S2 microphone can cancel out ambient noise. |
| Frequency Response | 100 - 10000 Hz | - | |
| Microphones Included | - | 6 |
| REMOTE CONTROL | Poly Blackwire 325 | Bowers & Wilkins PX7 S2 |
|---|
| Controls | Mute, volume, answer/end | - |
|---|
| CABLE | Poly Blackwire 325 | Bowers & Wilkins PX7 S2 |
|---|
| Cable Type | Headset cable - 2.13 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 | 2.13 m | 1.2 m | |
| Detachable Cable | - | Yes |
| FEATURES | Poly Blackwire 325 | Bowers & Wilkins PX7 S2 |
|---|
| Features | - | Wear detection | |
|---|---|---|---|
| Additional Functions | DSP | - |
| BATTERY AND CHARGING | Poly Blackwire 325 | 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 325 | Bowers & Wilkins PX7 S2 |
|---|
| Connector Type | USB (4 PIN USB Type A) Headphones (mini-phone 3.5 mm 4-pole) |
Headphones (24 pin USB-C) |
|---|
| OTHERS | Poly Blackwire 325 | 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 | Limited warranty - 2 years |
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