In depth comparison and review of Bang & Olufsen Beoplay H4 and Poly Blackwire 3320-M. Compare design, audio features, functions and other important specifications to easily choose the right headphones for you. Our goal is to help you uncover differences between the products and find the headphones that will best fit your needs.
| DESIGN AND DIMENSIONS | Bang & Olufsen Beoplay H4 | Poly Blackwire 3320-M |
|---|
| Product Type | Headphones - Bluetooth - wireless - 3.5 mm jack | Headset - wired - USB-C | |
|---|---|---|---|
| Series | - | Blackwire 3300 series | |
| Height | 22 cm | 17.8 cm | |
| Width | 19.4 cm | 15.5 cm | |
| Depth | 5 cm | 3.2 cm | |
| Weight | 235 g | 130 g | Poly Blackwire 3320-M are lighter than Bang & Olufsen Beoplay H4 headphones. |
| Colour | Black | Charcoal grey | Sandstone | Tangerine | Violet | Black | |
| Body Material | Stainless steel, aluminium | - | |
| Earpad Material | Leather | Foam | |
| Headband Material | Leather | - | |
| Recommended Use | Portable electronics | Portable electronics, computer | |
| Bluetooth Range (Operating Distance) | 10 m | - |
| SOUND QUALITY | Bang & Olufsen Beoplay H4 | Poly Blackwire 3320-M |
|---|
| Headphones Form Factor | Full size | On-ear | |
|---|---|---|---|
| Headphones Technology | Dynamic | - | |
| Ear Cups Type | Closed | - | |
| Adjustable Headband | Yes | Yes | |
| Connectivity Technology | Wireless | Wired | |
| Wireless Technology | Bluetooth | - | |
| Bluetooth Version | Bluetooth 4.2 | - | |
| Active Noise Cancelling | - | Yes | Poly Blackwire 3320-M are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | - | SoundGuard | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 20 - 22000 Hz | 20 - 20000 Hz | Bang & Olufsen Beoplay H4 offer a larger frequency range than Poly Blackwire 3320-M. |
| Sensitivity | 91 dB/mW | 116 dB | Poly Blackwire 3320-M have higher sensitivity than Bang & Olufsen Beoplay H4. |
| Impedance | 20 Ohm | 32 Ohm | |
| Max Sound Pressure | - | 118 dB | |
| Diaphragm | 40 mm | 32 mm | Bang & Olufsen Beoplay H4 have a thicker diaphragm than Poly Blackwire 3320-M. |
| Features | - | Dynamic EQ optimised | |
| In-Cord Volume Control | - | Yes |
| MICROPHONE | Bang & Olufsen Beoplay H4 | Poly Blackwire 3320-M |
|---|
| Form Factor | Built-in | - | |
|---|---|---|---|
| Type | - | Boom | |
| Microphone Technology | Electret condenser | - | |
| Microphone Operation Mode | Omni-directional | - | |
| Frequency Response | - | 100 - 10000 Hz | |
| Audio Input Details | Omni-directional | - | |
| Sensitivity | - | -38 dB |
| REMOTE CONTROL | Bang & Olufsen Beoplay H4 | Poly Blackwire 3320-M |
|---|
| Controls | Volume, answer/end, play/pause, next/previous track, pair mode | Mute, volume, answer/end |
|---|
| CABLE | Bang & Olufsen Beoplay H4 | Poly Blackwire 3320-M |
|---|
| Cable Type | Headphones cable - braided fabric - 1.25 m | - | |
|---|---|---|---|
| Cable Length | 1.25 m | - |
| BATTERY AND CHARGING | Bang & Olufsen Beoplay H4 | Poly Blackwire 3320-M |
|---|
| Battery Type | Headphone battery rechargeable - Lithium Ion | - | |
|---|---|---|---|
| Battery Capacity | 600 mAh | - | |
| Battery Life | 19 hour(s) | - | |
| Charging Time | 2.5 hour(s) | - |
| WIRELESS LINK | Bang & Olufsen Beoplay H4 | Poly Blackwire 3320-M |
|---|
| Transmission Range | 10 m | - |
|---|
| CONNECTIONS | Bang & Olufsen Beoplay H4 | Poly Blackwire 3320-M |
|---|
| Connector Type | Headphones (mini-phone 3.5mm) | USB (24 pin USB-C) |
|---|
| OTHERS | Bang & Olufsen Beoplay H4 | Poly Blackwire 3320-M |
|---|
| Included Accessories | USB charging cable (25cm) | - | |
|---|---|---|---|
| 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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