Side by side comparison and review of Poly Blackwire 325 and Razer Opus. Compare design, sound quality and other key specifications and features to simplify the choice of your perfect headphones. Our goal is to make it easier for you to decide on the headphones that will best meet your expectations by revealing the main differences between the products.
| DESIGN AND DIMENSIONS | Poly Blackwire 325 | Razer Opus |
|---|
| Product Type | Headset - wired - USB, 3.5 mm jack | Headphones - Bluetooth - wireless, wired - 3.5 mm jack | |
|---|---|---|---|
| Series | 300 Series | - | |
| Weight | - | 265 g | |
| Colour | - | Black | |
| Earpad Material | - | Memory foam, nylon, protein-leather, plush | |
| Headband Material | Metal | Leatherette | |
| Recommended Use | - | Portable electronics |
| SOUND QUALITY | Poly Blackwire 325 | Razer Opus |
|---|
| Headphones Form Factor | On-ear | Full size | |
|---|---|---|---|
| Headphones Technology | - | Dynamic | |
| Ear Cups Type | - | Closed | |
| Adjustable Headband | - | Yes | |
| Connectivity Technology | Wired | Wireless, wired | |
| Wireless Technology | - | Bluetooth | |
| Bluetooth Version | - | Bluetooth 4.2 | |
| Bluetooth Profiles | - | Hands-Free Profile (HFP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | |
| Bluetooth Audio Codec | - | SBC, aptX | |
| Active Noise Cancelling | - | Yes | Razer Opus are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | - | Advanced ANC | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 20 - 20000 Hz | 20 - 20000 Hz | Both headphones offer the same frequency response. |
| Sensitivity | - | 105 dB/mW | |
| Impedance | - | 12 Ohm | |
| Diaphragm | - | 40 mm | |
| Features | SoundGuard Technology | Quick Attention function | |
| In-Cord Volume Control | Yes | - |
| MICROPHONE | Poly Blackwire 325 | Razer Opus |
|---|
| Form Factor | - | Built-in | |
|---|---|---|---|
| Type | Boom | - | |
| Microphone Operation Mode | - | Omni-directional | |
| Frequency Response | 100 - 10000 Hz | 100 - 10000 Hz | The frequency response of the microphones in both headphones is the same. |
| Sensitivity | - | -38 dBV/Pascal | |
| Microphones Included | - | 2 |
| REMOTE CONTROL | Poly Blackwire 325 | Razer Opus |
|---|
| Controls | Mute, volume, answer/end | Power on/off, volume control, multiple function button, ANC/ambient |
|---|
| CABLE | Poly Blackwire 325 | Razer Opus |
|---|
| Cable Type | Headset cable - 2.13 m | USB-C cable - detachable - 30 cm Audio cable - detachable - L shaped / mini-phone stereo 3.5 mm - 1.5 m USB-A to USB-C adapter - detachable Airplane connection adapter - detachable |
|
|---|---|---|---|
| Cable Length | 2.13 m | - | |
| Detachable Cable | - | Yes |
| FEATURES | Poly Blackwire 325 | Razer Opus |
|---|
| Additional Functions | DSP | - |
|---|
| BATTERY AND CHARGING | Poly Blackwire 325 | Razer Opus |
|---|
| Battery Type | - | Headphone battery rechargeable | |
|---|---|---|---|
| Battery Life | - | 25 hour(s) |
| CONNECTIONS | Poly Blackwire 325 | Razer Opus |
|---|
| Connector Type | USB (4 PIN USB Type A) Headphones (mini-phone 3.5 mm 4-pole) |
Audio input (mini-phone stereo 3.5 mm) USB (24 pin USB-C) |
|---|
| OTHERS | Poly Blackwire 325 | Razer Opus |
|---|
| Included Accessories | - | Carrying case, USB-C charging cable, 3.5 mm audio cable (1.5 m) | |
|---|---|---|---|
| Compliant Standards | - | THX Certified | |
| Service & Support | Limited warranty - 2 years | Limited warranty - 2 years |
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