Side by side comparison and review of Koss UR 23i and EPOS I SENNHEISER ADAPT 261. 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 | EPOS I SENNHEISER ADAPT 261 |
|---|
| Product Type | Headphones - wired - 3.5 mm jack | Headset - Bluetooth - wireless - USB-C | |
|---|---|---|---|
| Weight | - | 120.7 g | |
| Colour | White | Black | Black | |
| Earpad Material | - | Leatherette | |
| Recommended Use | Portable electronics | Portable electronics, computer |
| SOUND QUALITY | Koss UR 23i | EPOS I SENNHEISER ADAPT 261 |
|---|
| Headphones Form Factor | Full size | On-ear | |
|---|---|---|---|
| Connectivity Technology | Wired | Wireless | |
| Wireless Technology | - | Bluetooth | |
| 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 | - | |
| Max Sound Pressure | - | 118 dB | |
| Magnet Material | - | Neodymium |
| MICROPHONE | Koss UR 23i | EPOS I SENNHEISER ADAPT 261 |
|---|
| Form Factor | - | Headset microphone | |
|---|---|---|---|
| Type | On-cable | Boom | |
| Frequency Response | - | 100 - 8000 Hz |
| CABLE | Koss UR 23i | EPOS I SENNHEISER ADAPT 261 |
|---|
| Cable Type | Headphones cable - 1.22 m | - |
|---|
| FEATURES | Koss UR 23i | EPOS I SENNHEISER ADAPT 261 |
|---|
| Features | - | EPOS ActiveGard |
|---|
| BATTERY AND CHARGING | Koss UR 23i | EPOS I SENNHEISER ADAPT 261 |
|---|
| Battery Type | - | Headphone battery rechargeable | |
|---|---|---|---|
| Battery Life | - | 27 hour(s) |
| CONNECTIONS | Koss UR 23i | EPOS I SENNHEISER ADAPT 261 |
|---|
| Connector Type | Headphones (mini-phone stereo 3.5 mm 4-pole) | - |
|---|
| OTHERS | Koss UR 23i | EPOS I SENNHEISER ADAPT 261 |
|---|
| Included Accessories | - | USB-C adapter | |
|---|---|---|---|
| Software Certification | - | Certified for Microsoft Teams, Optimised for UC | |
| Service & Support | Limited warranty - lifetime | Limited warranty - 2 years |
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