In depth comparison and review of Sennheiser HD 4.50 BTNC Wireless and Poly EncorePro 725. 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 | Sennheiser HD 4.50 BTNC Wireless | Poly EncorePro 725 |
|---|
| Product Type | Headphones - Bluetooth - wireless - NFC | Headset - wired - USB-A | |
|---|---|---|---|
| Series | - | EncorePro 700 Series | |
| Weight | 238 g | 78 g | Poly EncorePro 725 are lighter than Sennheiser HD 4.50 BTNC Wireless headphones. |
| Colour | - | Black | |
| Earpad Material | - | Artificial leather | |
| Recommended Use | Portable electronics | - |
| SOUND QUALITY | Sennheiser HD 4.50 BTNC Wireless | Poly EncorePro 725 |
|---|
| Headphones Form Factor | Full size | On-ear | |
|---|---|---|---|
| Headphones Technology | Dynamic | - | |
| Ear Cups Type | Closed | - | |
| Foldable | Yes | - | Sennheiser HD 4.50 BTNC Wireless can be folded. |
| Connectivity Technology | Wireless | Wired | |
| Wireless Technology | Bluetooth | - | |
| Bluetooth Version | Bluetooth 4.0 | - | |
| Bluetooth Profiles | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | - | |
| Active Noise Cancelling | Yes | - | Sennheiser HD 4.50 BTNC Wireless are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | NoiseGard active noise compensation | - | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 18 - 22000 Hz | - | |
| Total Harmonic Distortion (THD) | <0.5% | - | |
| Sensitivity | 113 dB | - | |
| Impedance | 18 Ohm | - | |
| Diaphragm | - | 28 mm | |
| Magnet Material | Neodymium | - | |
| Features | Bluetooth aptX technology | SoundGuard Technology |
| MICROPHONE | Sennheiser HD 4.50 BTNC Wireless | Poly EncorePro 725 |
|---|
| Form Factor | Built-in | - | |
|---|---|---|---|
| Type | - | Boom | |
| Microphone Operation Mode | Omni-directional | Omni-directional | |
| Noise Cancelling | - | Yes | Poly EncorePro 725 microphone can cancel out ambient noise. |
| Noise Cancelling Technology | - | Passive noise cancellation (PNC) | |
| Frequency Response | 100 - 10000 Hz | 100 - 6800 Hz | Sennheiser HD 4.50 BTNC Wireless offer a larger microphone frequency range than Poly EncorePro 725. |
| Microphones Included | 2 | - |
| REMOTE CONTROL | Sennheiser HD 4.50 BTNC Wireless | Poly EncorePro 725 |
|---|
| Controls | Power on/off, volume control, answer/end, hold, play/pause, next/previous track, reject call, redial | - |
|---|
| CABLE | Sennheiser HD 4.50 BTNC Wireless | Poly EncorePro 725 |
|---|
| Cable Type | Headphones cable - detachable - L shaped - 1.4 m Micro-USB charge cable - detachable |
- | |
|---|---|---|---|
| Cable Length | 1.4 m | 89 cm | |
| Detachable Cable | Yes | - | |
| Plated Connector | Gold | - |
| FEATURES | Sennheiser HD 4.50 BTNC Wireless | Poly EncorePro 725 |
|---|
| Features | - | 290° rotatable microphone |
|---|
| BATTERY AND CHARGING | Sennheiser HD 4.50 BTNC Wireless | Poly EncorePro 725 |
|---|
| Battery Type | Headphone battery rechargeable - lithium polymer | - | |
|---|---|---|---|
| Battery Capacity | 600 mAh | - | |
| Battery Life | 25 hour(s) | - | |
| Charging Time | 2 hour(s) | - |
| CONNECTIONS | Sennheiser HD 4.50 BTNC Wireless | Poly EncorePro 725 |
|---|
| Connector Type | Headphones (mini-phone stereo 3.5 mm) | USB (USB Type-A) |
|---|
| OTHERS | Sennheiser HD 4.50 BTNC Wireless | Poly EncorePro 725 |
|---|
| Included Accessories | Carrying case, micro-USB charging cable | - |
|---|
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