Side by side comparison and review of Koss UR 23i and Razer Nari Ultimate. 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 Nari Ultimate |
|---|
| Product Type | Headphones - wired - 3.5 mm jack | Headset - 2.4 GHz - wireless | |
|---|---|---|---|
| Colour | White | Black | - | |
| Earpad Material | - | Leatherette, memory foam | |
| Headband Material | - | Metal | |
| Recommended Use | Portable electronics | - | |
| Bluetooth Range (Operating Distance) | - | 12 m |
| SOUND QUALITY | Koss UR 23i | Razer Nari Ultimate |
|---|
| Headphones Form Factor | Full size | Full size | |
|---|---|---|---|
| Headphones Technology | - | Dynamic | |
| Adjustable Headband | - | Yes | |
| Connectivity Technology | Wired | Wireless | |
| Wireless Technology | - | 2.4 GHz radio frequency | |
| Sound Output Mode | Stereo | Stereo | |
| Sound Effects | - | THX Spatial Audio | |
| Frequency Response | 20 - 20000 Hz | 20 - 20000 Hz | Both headphones offer the same frequency response. |
| Max Input Power | - | 30 mW | |
| Sensitivity | 94 dB | 105 dB | Razer Nari Ultimate have higher sensitivity than Koss UR 23i. |
| Impedance | 34 Ohm | 32 Ohm | |
| Diaphragm | - | 50 mm | |
| Magnet Material | - | Neodymium |
| MICROPHONE | Koss UR 23i | Razer Nari Ultimate |
|---|
| Type | On-cable | Boom | |
|---|---|---|---|
| Microphone Operation Mode | - | Uni-directional | |
| Frequency Response | - | 100 - 6500 Hz | |
| Sensitivity | - | -42 dB | |
| Signal-To-Noise Ratio | - | 50 dB |
| REMOTE CONTROL | Koss UR 23i | Razer Nari Ultimate |
|---|
| Controls | - | Mute, volume |
|---|
| CABLE | Koss UR 23i | Razer Nari Ultimate |
|---|
| Cable Type | Headphones cable - 1.22 m | - |
|---|
| BATTERY AND CHARGING | Koss UR 23i | Razer Nari Ultimate |
|---|
| Battery Type | - | Rechargeable | |
|---|---|---|---|
| Battery Life | - | 24 hour(s) |
| CONNECTIONS | Koss UR 23i | Razer Nari Ultimate |
|---|
| Connector Type | Headphones (mini-phone stereo 3.5 mm 4-pole) | Headset (mini-phone 3.5 mm 4-pole) |
|---|
| OTHERS | Koss UR 23i | Razer Nari Ultimate |
|---|
| Service & Support | Limited warranty - lifetime | - |
|---|
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