Side by side comparison and review of Sennheiser HD 450BT 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 | Sennheiser HD 450BT | Razer Opus |
|---|
| Product Type | Headphones - Bluetooth - wireless | Headphones - Bluetooth - wireless, wired - 3.5 mm jack | |
|---|---|---|---|
| Weight | 238 g | 265 g | Sennheiser HD 450BT are lighter than Sennheiser HD 450BT headphones. |
| Colour | Black | White | Black | |
| Earpad Material | - | Memory foam, nylon, protein-leather, plush | |
| Headband Material | - | Leatherette | |
| Recommended Use | - | Portable electronics |
| SOUND QUALITY | Sennheiser HD 450BT | Razer Opus |
|---|
| Headphones Form Factor | Full size | Full size | |
|---|---|---|---|
| Headphones Technology | Dynamic | Dynamic | |
| Ear Cups Type | Closed | Closed | |
| Adjustable Headband | - | Yes | |
| Foldable | Yes | - | Sennheiser HD 450BT can be folded. |
| Connectivity Technology | Wireless | Wireless, wired | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 5.0 | Bluetooth 4.2 | Sennheiser HD 450BT have a more advanced version of Bluetooth than Razer Opus. |
| Bluetooth Profiles | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | Hands-Free Profile (HFP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | |
| Bluetooth Audio Codec | SBC, AAC, aptX, apt-X LL | SBC, aptX | |
| Active Noise Cancelling | Yes | Yes | Both headphones are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | - | Advanced ANC | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 18 - 22000 Hz | 20 - 20000 Hz | Sennheiser HD 450BT offer a larger frequency range than Razer Opus. |
| Total Harmonic Distortion (THD) | <0.3% | - | |
| Sensitivity | - | 105 dB/mW | |
| Impedance | - | 12 Ohm | |
| Max Sound Pressure | 108 dB | - | |
| Diaphragm | - | 40 mm | |
| Features | - | Quick Attention function |
| MICROPHONE | Sennheiser HD 450BT | Razer Opus |
|---|
| Form Factor | Built-in | Built-in | |
|---|---|---|---|
| Microphone Operation Mode | Beamforming | Omni-directional | |
| Frequency Response | 80 - 6000 Hz | 100 - 10000 Hz | Razer Opus offer a larger microphone frequency range than Sennheiser HD 450BT. |
| Sensitivity | - | -38 dBV/Pascal | |
| Microphones Included | 2 | 2 | Both headphones have a built-in microphone. |
| REMOTE CONTROL | Sennheiser HD 450BT | Razer Opus |
|---|
| Controls | - | Power on/off, volume control, multiple function button, ANC/ambient |
|---|
| CABLE | Sennheiser HD 450BT | Razer Opus |
|---|
| Cable Type | Audio cable - detachable USB-C charge cable - detachable |
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 |
|
|---|---|---|---|
| Detachable Cable | - | Yes |
| BATTERY AND CHARGING | Sennheiser HD 450BT | Razer Opus |
|---|
| Battery Type | Headphone battery rechargeable - lithium polymer | Headphone battery rechargeable | |
|---|---|---|---|
| Battery Capacity | 600 mAh | - | |
| Battery Life | 30 hours | 25 hour(s) | Sennheiser HD 450BT lasts longer on a single charge than the Razer Opus. |
| Charging Time | 2 hours | - |
| CONNECTIONS | Sennheiser HD 450BT | Razer Opus |
|---|
| Connector Type | - | Audio input (mini-phone stereo 3.5 mm) USB (24 pin USB-C) |
|---|
| OTHERS | Sennheiser HD 450BT | Razer Opus |
|---|
| Included Accessories | Carrying case | 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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