Detailed comparison and review of KEF M500 and Poly - Plantronics Backbeat 505. With our comprehensive overview, you can simply compare design, sound quality, but also other key features of both headphones and easily decide which ones are the right choice for you. Our goal is to help you identify the main differences between products and find the headphones that best fit your needs and expectations.
| DESIGN AND DIMENSIONS | KEF M500 | Poly - Plantronics Backbeat 505 |
|---|
| Product Type | Headset - wired | Headphones - Bluetooth - wireless - 3.5 mm jack | |
|---|---|---|---|
| Series | - | 500 Series | |
| Weight | 208 g | 155 g | Poly - Plantronics Backbeat 505 are lighter than KEF M500 headphones. |
| Colour | Classic | Dark grey | |
| Body Material | Aluminium alloy | - | |
| Earpad Material | - | Memory foam | |
| Recommended Use | Portable electronics, phone | - | |
| Bluetooth Range (Operating Distance) | - | 10 m |
| SOUND QUALITY | KEF M500 | Poly - Plantronics Backbeat 505 |
|---|
| Headphones Form Factor | On-ear | On-ear | |
|---|---|---|---|
| Adjustable Headband | Yes | - | |
| Foldable | Yes | - | KEF M500 can be folded. |
| Connectivity Technology | Wired | Wireless | |
| Wireless Technology | - | Bluetooth | |
| Bluetooth Version | - | Bluetooth 4.1 | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 20 - 20000 Hz | - | |
| Max Input Power | 30 mW | - | |
| Sensitivity | 103 dB | - | |
| Impedance | 32 Ohm | - | |
| Diaphragm | 40 mm | 40 mm | Both headphones are designed with same thick diaphragm. |
| Magnet Material | Neodymium | - | |
| In-Cord Volume Control | Yes | - |
| MICROPHONE | KEF M500 | Poly - Plantronics Backbeat 505 |
|---|
| Form Factor | - | Built-in | |
|---|---|---|---|
| Type | On-cable | - |
| REMOTE CONTROL | KEF M500 | Poly - Plantronics Backbeat 505 |
|---|
| Controls | Volume, answer/end, play/pause, next/previous track | Volume, answer/end, play/pause, next/previous track |
|---|
| CABLE | KEF M500 | Poly - Plantronics Backbeat 505 |
|---|
| Cable Type | 2 x headset cable - 1.3 m | - | |
|---|---|---|---|
| Plated Connector | Gold | - |
| BATTERY AND CHARGING | KEF M500 | Poly - Plantronics Backbeat 505 |
|---|
| Battery Type | - | Headphone battery rechargeable | |
|---|---|---|---|
| Battery Life | - | 18 hour(s) |
| WIRELESS LINK | KEF M500 | Poly - Plantronics Backbeat 505 |
|---|
| Transmission Range | - | 10 m |
|---|
| CONNECTIONS | KEF M500 | Poly - Plantronics Backbeat 505 |
|---|
| Connector Type | Headset (mini-phone stereo 3.5 mm) | Headphones (mini-phone stereo 3.5 mm 4-pole) |
|---|
| OTHERS | KEF M500 | Poly - Plantronics Backbeat 505 |
|---|
| Included Accessories | Protective case, in-flight plug adapter, 3.5 mm to 6.3 mm adapter | - | |
|---|---|---|---|
| Service & Support | Limited warranty - 1 year | - |
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