Side by side comparison and review of Koss UR 23i and Razer Opus X. 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 | Koss UR 23i | Razer Opus X |
|---|
| Product Type | Headphones - wired - 3.5 mm jack | Headphones - Bluetooth - wireless | |
|---|---|---|---|
| Weight | - | 270 g | |
| Colour | White | Black | Mercury | Quartz | |
| Earpad Material | - | Nylon, protein-leather | |
| Recommended Use | Portable electronics | - |
| SOUND QUALITY | Koss UR 23i | Razer Opus X |
|---|
| Headphones Form Factor | Full size | Full size | |
|---|---|---|---|
| Connectivity Technology | Wired | Wireless | |
| Wireless Technology | - | Bluetooth | |
| Bluetooth Version | - | Bluetooth 5.0 | |
| Active Noise Cancelling | - | Yes | Razer Opus X are equipped with active noice cancellation. |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 20 - 20000 Hz | 20 - 20000 Hz | Both headphones offer the same frequency response. |
| Sensitivity | 94 dB | - | |
| Impedance | 34 Ohm | - | |
| Diaphragm | - | 40 mm |
| MICROPHONE | Koss UR 23i | Razer Opus X |
|---|
| Form Factor | - | Built-in | |
|---|---|---|---|
| Type | On-cable | - | |
| Noise Cancelling | - | Yes | Razer Opus X microphone can cancel out ambient noise. |
| Microphones Included | - | 2 |
| REMOTE CONTROL | Koss UR 23i | Razer Opus X |
|---|
| Controls | - | Volume |
|---|
| CABLE | Koss UR 23i | Razer Opus X |
|---|
| Cable Type | Headphones cable - 1.22 m | USB-C to USB-A cable - detachable - 50 cm |
|---|
| BATTERY AND CHARGING | Koss UR 23i | Razer Opus X |
|---|
| Battery Type | - | Headphone battery rechargeable |
|---|
| CONNECTIONS | Koss UR 23i | Razer Opus X |
|---|
| Connector Type | Headphones (mini-phone stereo 3.5 mm 4-pole) | - |
|---|
| OTHERS | Koss UR 23i | Razer Opus X |
|---|
| Included Accessories | - | USB-C to USB-A charging cable | |
|---|---|---|---|
| Service & Support | Limited warranty - lifetime | - |
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