In depth comparison and review of Poly Blackwire C225 and KEF M500. 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 | KEF M500 |
|---|
| Product Type | Headset - wired - 3.5 mm jack | Headset - wired | |
|---|---|---|---|
| Weight | - | 208 g | |
| Colour | - | Classic | |
| Body Material | - | Aluminium alloy | |
| Headband Material | Metal | - | |
| Recommended Use | Portable electronics, computer | Portable electronics, phone |
| SOUND QUALITY | Poly Blackwire C225 | KEF M500 |
|---|
| Headphones Form Factor | On-ear | On-ear | |
|---|---|---|---|
| Adjustable Headband | - | Yes | |
| Foldable | - | Yes | KEF M500 can be folded. |
| Connectivity Technology | Wired | Wired | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 20 - 20000 Hz | 20 - 20000 Hz | Both headphones offer the same frequency response. |
| Max Input Power | - | 30 mW | |
| Sensitivity | - | 103 dB | |
| Impedance | - | 32 Ohm | |
| Diaphragm | - | 40 mm | |
| Magnet Material | - | Neodymium | |
| Features | SoundGuard Technology | - | |
| In-Cord Volume Control | Yes | Yes |
| MICROPHONE | Poly Blackwire C225 | KEF M500 |
|---|
| Type | Boom | On-cable | |
|---|---|---|---|
| Frequency Response | 100 - 10000 Hz | - |
| REMOTE CONTROL | Poly Blackwire C225 | KEF M500 |
|---|
| Controls | Mute, volume, answer/end | Volume, answer/end, play/pause, next/previous track |
|---|
| CABLE | Poly Blackwire C225 | KEF M500 |
|---|
| Cable Type | Headset cable | 2 x headset cable - 1.3 m | |
|---|---|---|---|
| Plated Connector | - | Gold |
| CONNECTIONS | Poly Blackwire C225 | KEF M500 |
|---|
| Connector Type | Headset (mini-phone stereo 3.5 mm 4-pole) | Headset (mini-phone stereo 3.5 mm) |
|---|
| OTHERS | Poly Blackwire C225 | KEF M500 |
|---|
| Included Accessories | - | Protective case, in-flight plug adapter, 3.5 mm to 6.3 mm adapter | |
|---|---|---|---|
| Service & Support | Limited warranty - 2 years | Limited warranty - 1 year |
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