Side by side comparison and review of Koss UR 23i and Poly Voyager 4210-M. 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 | Poly Voyager 4210-M |
|---|
| Product Type | Headphones - wired - 3.5 mm jack | Headset - wired - USB-C | |
|---|---|---|---|
| Series | - | Voyager 4200 series | |
| Colour | White | Black | - | |
| Recommended Use | Portable electronics | - |
| SOUND QUALITY | Koss UR 23i | Poly Voyager 4210-M |
|---|
| Headphones Form Factor | Full size | - | |
|---|---|---|---|
| Connectivity Technology | Wired | Wired | |
| Sound Output Mode | Stereo | - | |
| Frequency Response | 20 - 20000 Hz | - | |
| Sensitivity | 94 dB | - | |
| Impedance | 34 Ohm | - |
| MICROPHONE | Koss UR 23i | Poly Voyager 4210-M |
|---|
| Type | On-cable | - |
|---|
| CABLE | Koss UR 23i | Poly Voyager 4210-M |
|---|
| Cable Type | Headphones cable - 1.22 m | - |
|---|
| CONNECTIONS | Koss UR 23i | Poly Voyager 4210-M |
|---|
| Connector Type | Headphones (mini-phone stereo 3.5 mm 4-pole) | USB (USB Type-C) |
|---|
| OTHERS | Koss UR 23i | Poly Voyager 4210-M |
|---|
| Included Accessories | - | Charging stand, Bluetooth dongle | |
|---|---|---|---|
| Software Certification | - | Certified for Microsoft Teams | |
| Service & Support | Limited warranty - lifetime | - |
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