In depth comparison and review of Poly Blackwire C225 and Bang & Olufsen Beoplay H9. 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 | Poly Blackwire C225 | Bang & Olufsen Beoplay H9 |
|---|
| Product Type | Headset - wired - 3.5 mm jack | Headphones - Bluetooth - wireless | |
|---|---|---|---|
| Height | - | 22.5 cm | |
| Width | - | 19.7 cm | |
| Depth | - | 4 cm | |
| Weight | - | 285 g | |
| Colour | - | Argilla grey | Black | |
| Body Material | - | Anodised aluminium | |
| Earpad Material | - | Leather | |
| Headband Material | Metal | - | |
| Recommended Use | Portable electronics, computer | Portable electronics |
| SOUND QUALITY | Poly Blackwire C225 | Bang & Olufsen Beoplay H9 |
|---|
| Headphones Form Factor | On-ear | Full size | |
|---|---|---|---|
| Headphones Technology | - | Dynamic | |
| Adjustable Headband | - | Yes | |
| Connectivity Technology | Wired | Wireless | |
| Wireless Technology | - | Bluetooth | |
| Bluetooth Version | - | Bluetooth 4.2 | |
| Bluetooth Profiles | - | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | |
| Bluetooth Audio Codec | - | AAC, aptX | |
| Active Noise Cancelling | - | Yes | Bang & Olufsen Beoplay H9 are equipped with active noice cancellation. |
| Sound Output Mode | Stereo | Stereo | |
| Sound Effects | - | Signature Sound | |
| Frequency Response | 20 - 20000 Hz | 20 - 22000 Hz | Bang & Olufsen Beoplay H9 offer a larger frequency range than Poly Blackwire C225. |
| Sensitivity | - | 93 dB/mW | |
| Impedance | - | 20 Ohm | |
| Diaphragm | - | 40 mm | |
| Features | SoundGuard Technology | Bluetooth aptX technology | |
| In-Cord Volume Control | Yes | - |
| MICROPHONE | Poly Blackwire C225 | Bang & Olufsen Beoplay H9 |
|---|
| Form Factor | - | Built-in | |
|---|---|---|---|
| Type | Boom | - | |
| Microphone Technology | - | Electret condenser | |
| Microphone Operation Mode | - | Omni-directional | |
| Frequency Response | 100 - 10000 Hz | - |
| REMOTE CONTROL | Poly Blackwire C225 | Bang & Olufsen Beoplay H9 |
|---|
| Controls | Mute, volume, answer/end | Volume, answer/end, play/pause, next/previous track, noise-cancellation suspend button |
|---|
| CABLE | Poly Blackwire C225 | Bang & Olufsen Beoplay H9 |
|---|
| Cable Type | Headset cable | Headphones cable - detachable - 1.2 m |
|---|
| BATTERY AND CHARGING | Poly Blackwire C225 | Bang & Olufsen Beoplay H9 |
|---|
| Battery Type | - | Headphone battery rechargeable | |
|---|---|---|---|
| Battery Capacity | - | 770 mAh | |
| Battery Life | - | 21 hour(s) | |
| Battery Life Details | - | Continuous playback (noise cancelling ON / Bluetooth): up to 14 hours Continuous playback (noise cancelling OFF): up to 16 hours Continuous playback (noise cancelling ON / cable connection): up to 21 hours |
|
| Charging Time | - | 2.5 hour(s) |
| CONNECTIONS | Poly Blackwire C225 | Bang & Olufsen Beoplay H9 |
|---|
| Connector Type | Headset (mini-phone stereo 3.5 mm 4-pole) | Headphones (mini-phone stereo 3.5 mm) |
|---|
| OTHERS | Poly Blackwire C225 | Bang & Olufsen Beoplay H9 |
|---|
| Included Accessories | - | Carrying pouch, airplane adapter, micro-USB charging cable (30cm) | |
|---|---|---|---|
| Service & Support | Limited warranty - 2 years | Limited warranty - 2 years |
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