Side by side comparison and review of Poly - Plantronics Backbeat Pro 2 and KEF M500. 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 | Poly - Plantronics Backbeat Pro 2 | KEF M500 |
|---|
| Product Type | Headphones - Bluetooth - wireless | Headset - wired | |
|---|---|---|---|
| Weight | 289 g | 208 g | KEF M500 are lighter than Poly - Plantronics Backbeat Pro 2 headphones. |
| Colour | Black | Classic | |
| Body Material | - | Aluminium alloy | |
| Recommended Use | Portable electronics | Portable electronics, phone | |
| Bluetooth Range (Operating Distance) | 100 m | - |
| SOUND QUALITY | Poly - Plantronics Backbeat Pro 2 | KEF M500 |
|---|
| Headphones Form Factor | On-ear | On-ear | |
|---|---|---|---|
| Adjustable Headband | - | Yes | |
| Foldable | - | Yes | KEF M500 can be folded. |
| Connectivity Technology | Wireless | Wired | |
| Wireless Technology | Bluetooth | - | |
| Bluetooth Version | Bluetooth 4.0 EDR | - | |
| Bluetooth Profiles | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | - | |
| Active Noise Cancelling | Yes | - | Poly - Plantronics Backbeat Pro 2 are equipped with active noice cancellation. |
| 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 | 93 dB | 103 dB | KEF M500 have higher sensitivity than Poly - Plantronics Backbeat Pro 2. |
| Impedance | 32 Ohm | 32 Ohm | |
| Diaphragm | 40 mm | 40 mm | Both headphones are designed with same thick diaphragm. |
| Magnet Material | - | Neodymium | |
| In-Cord Volume Control | - | Yes |
| MICROPHONE | Poly - Plantronics Backbeat Pro 2 | KEF M500 |
|---|
| Form Factor | Built-in | - | |
|---|---|---|---|
| Type | - | On-cable |
| REMOTE CONTROL | Poly - Plantronics Backbeat Pro 2 | KEF M500 |
|---|
| Controls | Volume, answer/end, play/pause, next/previous track | Volume, answer/end, play/pause, next/previous track |
|---|
| CABLE | Poly - Plantronics Backbeat Pro 2 | KEF M500 |
|---|
| Cable Type | USB charge cable Headphones cable |
2 x headset cable - 1.3 m | |
|---|---|---|---|
| Plated Connector | - | Gold |
| BATTERY AND CHARGING | Poly - Plantronics Backbeat Pro 2 | KEF M500 |
|---|
| Battery Type | Headphone battery rechargeable - Lithium Ion | - | |
|---|---|---|---|
| Battery Life | 24 hour(s) | - | |
| Charging Time | 3 hours | - |
| WIRELESS LINK | Poly - Plantronics Backbeat Pro 2 | KEF M500 |
|---|
| Transmission Range | 100 m | - |
|---|
| CONNECTIONS | Poly - Plantronics Backbeat Pro 2 | KEF M500 |
|---|
| Connector Type | Headphones (mini-phone stereo 3.5 mm 4-pole) | Headset (mini-phone stereo 3.5 mm) |
|---|
| OTHERS | Poly - Plantronics Backbeat Pro 2 | KEF M500 |
|---|
| Included Accessories | Travel pouch | Protective case, in-flight plug adapter, 3.5 mm to 6.3 mm adapter | |
|---|---|---|---|
| Service & Support | - | Limited warranty - 1 year |
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