In depth comparison and review of Razer Opus and Sennheiser HD 250BT. 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 | Razer Opus | Sennheiser HD 250BT |
|---|
| Product Type | Headphones - Bluetooth - wireless, wired - 3.5 mm jack | Headphones - Bluetooth - wireless | |
|---|---|---|---|
| Weight | 265 g | 125 g | Sennheiser HD 250BT are lighter than Razer Opus headphones. |
| Colour | Black | - | |
| Earpad Material | Memory foam, nylon, protein-leather, plush | - | |
| Headband Material | Leatherette | - | |
| Recommended Use | Portable electronics | Portable electronics |
| SOUND QUALITY | Razer Opus | Sennheiser HD 250BT |
|---|
| Headphones Form Factor | Full size | On-ear | |
|---|---|---|---|
| Headphones Technology | Dynamic | Dynamic | |
| Ear Cups Type | Closed | Closed | |
| Adjustable Headband | Yes | Yes | |
| Connectivity Technology | Wireless, wired | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 4.2 | Bluetooth 5.0 | Sennheiser HD 250BT have a more advanced version of Bluetooth than Razer Opus. |
| Bluetooth Profiles | Hands-Free Profile (HFP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | |
| Bluetooth Audio Codec | SBC, aptX | SBC, AAC, aptX, apt-X LL | |
| Active Noise Cancelling | Yes | - | Razer Opus are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | Advanced ANC | - | |
| Noise Isolating | - | Yes | Sennheiser HD 250BT are equipped with a noise isolating function. |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 20 - 20000 Hz | 20 - 22000 Hz | Sennheiser HD 250BT offer a larger frequency range than Razer Opus. |
| Total Harmonic Distortion (THD) | - | <0.3% | |
| Sensitivity | 105 dB/mW | 110 dB | Sennheiser HD 250BT have higher sensitivity than Razer Opus. |
| Impedance | 12 Ohm | - | |
| Diaphragm | 40 mm | 32 mm | Razer Opus have a thicker diaphragm than Sennheiser HD 250BT. |
| Features | Quick Attention function | Audio prompts |
| MICROPHONE | Razer Opus | Sennheiser HD 250BT |
|---|
| Form Factor | Built-in | Built-in | |
|---|---|---|---|
| Microphone Technology | - | Electret condenser | |
| Microphone Operation Mode | Omni-directional | 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 | Razer Opus | Sennheiser HD 250BT |
|---|
| Controls | Power on/off, volume control, multiple function button, ANC/ambient | Volume, on/off, answer/end, hold, play/pause, next/previous track, reject call |
|---|
| CABLE | Razer Opus | Sennheiser HD 250BT |
|---|
| Cable Type | 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 |
USB-C charge cable - detachable | |
|---|---|---|---|
| Detachable Cable | Yes | - |
| BATTERY AND CHARGING | Razer Opus | Sennheiser HD 250BT |
|---|
| Battery Type | Headphone battery rechargeable | Headphone battery rechargeable | |
|---|---|---|---|
| Battery Capacity | - | 190 mAh | |
| Battery Life | 25 hour(s) | 25 hour(s) | Both headphones last the same amount of time on a single charge. |
| Charging Time | - | 3 hour(s) |
| CONNECTIONS | Razer Opus | Sennheiser HD 250BT |
|---|
| Connector Type | Audio input (mini-phone stereo 3.5 mm) USB (24 pin USB-C) |
- |
|---|
| OTHERS | Razer Opus | Sennheiser HD 250BT |
|---|
| Included Accessories | Carrying case, USB-C charging cable, 3.5 mm audio cable (1.5 m) | USB-C charging cable | |
|---|---|---|---|
| Compatibility | - | iPhone, Android phone | |
| Compliant Standards | THX Certified | Bluetooth Class 1 | |
| Service & Support | Limited warranty - 2 years | - |
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