Detailed comparison and review of Bowers & Wilkins PX7 S2 and Poly Blackwire 3320-M. 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 3320-M |
|---|
| Product Type | Headphones - Bluetooth - wireless, wired - USB-C | Headset - wired - USB-C | |
|---|---|---|---|
| Series | - | Blackwire 3300 series | |
| Height | - | 17.8 cm | |
| Width | - | 15.5 cm | |
| Depth | - | 3.2 cm | |
| Weight | 307 g | 130 g | Poly Blackwire 3320-M 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 | Foam | |
| Recommended Use | - | Portable electronics, computer |
| SOUND QUALITY | Bowers & Wilkins PX7 S2 | Poly Blackwire 3320-M |
|---|
| 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 | |
| Frequency Response | - | 20 - 20000 Hz | |
| Sensitivity | - | 116 dB | |
| Impedance | - | 32 Ohm | |
| Max Sound Pressure | - | 118 dB | |
| Diaphragm | Bio-cellulose - 40 mm | 32 mm | Bowers & Wilkins PX7 S2 have a thicker diaphragm than Poly Blackwire 3320-M. |
| Features | Ambient Pass-Through | Dynamic EQ optimised | |
| In-Cord Volume Control | - | Yes |
| MICROPHONE | Bowers & Wilkins PX7 S2 | Poly Blackwire 3320-M |
|---|
| Form Factor | Built-in | - | |
|---|---|---|---|
| Type | - | Boom | |
| Noise Cancelling | Yes | - | Bowers & Wilkins PX7 S2 microphone can cancel out ambient noise. |
| Frequency Response | - | 100 - 10000 Hz | |
| Sensitivity | - | -38 dB | |
| Microphones Included | 6 | - |
| REMOTE CONTROL | Bowers & Wilkins PX7 S2 | Poly Blackwire 3320-M |
|---|
| Controls | - | Mute, volume, answer/end |
|---|
| CABLE | Bowers & Wilkins PX7 S2 | Poly Blackwire 3320-M |
|---|
| 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 |
- | |
|---|---|---|---|
| Cable Length | 1.2 m | - | |
| Detachable Cable | Yes | - |
| FEATURES | Bowers & Wilkins PX7 S2 | Poly Blackwire 3320-M |
|---|
| Features | Wear detection | - |
|---|
| BATTERY AND CHARGING | Bowers & Wilkins PX7 S2 | Poly Blackwire 3320-M |
|---|
| 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 3320-M |
|---|
| Connector Type | Headphones (24 pin USB-C) | USB (24 pin USB-C) |
|---|
| OTHERS | Bowers & Wilkins PX7 S2 | Poly Blackwire 3320-M |
|---|
| Included Accessories | Carrying case, 3.5 mm to USB-C cable, USB-C to USB-C cable | - | |
|---|---|---|---|
| Compatibility | - | Mac, Windows | |
| Software Certification | - | Certified for Microsoft Teams | |
| Supported Host Device OS | - | Windows 10, macOS | |
| Service & Support | Limited warranty - 2 years | - |
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