In depth comparison and review of Poly - Plantronics Backbeat Pro 2 and Sennheiser HD 4.40. 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 - Plantronics Backbeat Pro 2 | Sennheiser HD 4.40 |
|---|
| Product Type | Headphones - Bluetooth - wireless | Headphones - Bluetooth - wireless - NFC | |
|---|---|---|---|
| Weight | 289 g | - | |
| Colour | Black | - | |
| Recommended Use | Portable electronics | - | |
| Bluetooth Range (Operating Distance) | 100 m | - |
| SOUND QUALITY | Poly - Plantronics Backbeat Pro 2 | Sennheiser HD 4.40 |
|---|
| Headphones Form Factor | On-ear | Full size | |
|---|---|---|---|
| Ear Cups Type | - | Closed | |
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 4.0 EDR | Bluetooth 4.0 | Sennheiser HD 4.40 have a more advanced version of Bluetooth than Poly - Plantronics Backbeat Pro 2. |
| 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 | 18 - 22000 Hz | Sennheiser HD 4.40 offer a larger frequency range than Poly - Plantronics Backbeat Pro 2. |
| Total Harmonic Distortion (THD) | - | 0.5% | |
| Sensitivity | 93 dB | 113 dB | Sennheiser HD 4.40 have higher sensitivity than Poly - Plantronics Backbeat Pro 2. |
| Impedance | 32 Ohm | 18 Ohm | |
| Diaphragm | 40 mm | - |
| MICROPHONE | Poly - Plantronics Backbeat Pro 2 | Sennheiser HD 4.40 |
|---|
| Form Factor | Built-in | Built-in | |
|---|---|---|---|
| Microphone Operation Mode | - | Omni-directional | |
| Frequency Response | - | 100 - 10000 Hz | |
| Microphones Included | - | 2 |
| REMOTE CONTROL | Poly - Plantronics Backbeat Pro 2 | Sennheiser HD 4.40 |
|---|
| Controls | Volume, answer/end, play/pause, next/previous track | - |
|---|
| CABLE | Poly - Plantronics Backbeat Pro 2 | Sennheiser HD 4.40 |
|---|
| Cable Type | USB charge cable Headphones cable |
- |
|---|
| BATTERY AND CHARGING | Poly - Plantronics Backbeat Pro 2 | Sennheiser HD 4.40 |
|---|
| Battery Type | Headphone battery rechargeable - Lithium Ion | Headphone battery lithium polymer | |
|---|---|---|---|
| Battery Life | 24 hour(s) | - | |
| Charging Time | 3 hours | - |
| WIRELESS LINK | Poly - Plantronics Backbeat Pro 2 | Sennheiser HD 4.40 |
|---|
| Transmission Range | 100 m | - |
|---|
| CONNECTIONS | Poly - Plantronics Backbeat Pro 2 | Sennheiser HD 4.40 |
|---|
| Connector Type | Headphones (mini-phone stereo 3.5 mm 4-pole) | - |
|---|
| OTHERS | Poly - Plantronics Backbeat Pro 2 | Sennheiser HD 4.40 |
|---|
| Included Accessories | Travel pouch | - |
|---|
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