In depth comparison and review of Poly Blackwire C225 and Koss UR 23i. 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 | Poly Blackwire C225 | Koss UR 23i |
|---|
| Product Type | Headset - wired - 3.5 mm jack | Headphones - wired - 3.5 mm jack | |
|---|---|---|---|
| Colour | - | White | Black | |
| Headband Material | Metal | - | |
| Recommended Use | Portable electronics, computer | Portable electronics |
| SOUND QUALITY | Poly Blackwire C225 | Koss UR 23i |
|---|
| Headphones Form Factor | On-ear | Full size | |
|---|---|---|---|
| Connectivity Technology | Wired | Wired | |
| 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 | |
| Features | SoundGuard Technology | - | |
| In-Cord Volume Control | Yes | - |
| MICROPHONE | Poly Blackwire C225 | Koss UR 23i |
|---|
| Type | Boom | On-cable | |
|---|---|---|---|
| Frequency Response | 100 - 10000 Hz | - |
| REMOTE CONTROL | Poly Blackwire C225 | Koss UR 23i |
|---|
| Controls | Mute, volume, answer/end | - |
|---|
| CABLE | Poly Blackwire C225 | Koss UR 23i |
|---|
| Cable Type | Headset cable | Headphones cable - 1.22 m |
|---|
| CONNECTIONS | Poly Blackwire C225 | Koss UR 23i |
|---|
| Connector Type | Headset (mini-phone stereo 3.5 mm 4-pole) | Headphones (mini-phone stereo 3.5 mm 4-pole) |
|---|
| OTHERS | Poly Blackwire C225 | Koss UR 23i |
|---|
| Service & Support | Limited warranty - 2 years | Limited warranty - lifetime |
|---|
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