Side by side comparison and review of JBL Everest 300 and Poly EncorePro 520V. 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 | JBL Everest 300 | Poly EncorePro 520V |
|---|
| Product Type | Headphones - Bluetooth - wireless | Headset - wired - 3.5 mm jack | |
|---|---|---|---|
| Series | - | EncorePro 500 series | |
| Height | 16.32 cm | 6.7 cm | |
| Width | 17.38 cm | 11.1 cm | |
| Depth | 7.08 cm | 14.9 cm | |
| Weight | 245 g | 74 g | Poly EncorePro 520V are lighter than JBL Everest 300 headphones. |
| Colour | Blue | Red | Black | White | Black | |
| Earpad Material | - | Artificial leather | |
| Recommended Use | Portable electronics | - |
| SOUND QUALITY | JBL Everest 300 | Poly EncorePro 520V |
|---|
| Headphones Form Factor | On-ear | On-ear | |
|---|---|---|---|
| Headphones Technology | Dynamic | - | |
| Connectivity Technology | Wireless | Wired | |
| Wireless Technology | Bluetooth | - | |
| Bluetooth Version | Bluetooth 4.1 | - | |
| 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 EncorePro 520V are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | - | SoundGuard DIGITAL | |
| Sound Output Mode | Stereo | - | |
| Frequency Response | 10 - 22000 Hz | - | |
| Max Input Power | 30 mW | - | |
| Sensitivity | 100 dB/mW | - | |
| Max Sound Pressure | 115 dB | - | |
| Diaphragm | 40 mm | 5.6 mm | JBL Everest 300 have a thicker diaphragm than Poly EncorePro 520V. |
| Signal-To-Noise Ratio | - | 50 dB |
| MICROPHONE | JBL Everest 300 | Poly EncorePro 520V |
|---|
| Form Factor | Built-in | - | |
|---|---|---|---|
| Type | - | Boom | |
| Microphone Operation Mode | - | Omni-directional | |
| Noise Cancelling | - | Yes | Poly EncorePro 520V microphone can cancel out ambient noise. |
| Frequency Response | - | 20 - 16000 Hz | |
| Sensitivity | -42 dBV/Pascal | 40 dB | |
| Sensitivity Margin | - | +/- 3dB |
| CABLE | JBL Everest 300 | Poly EncorePro 520V |
|---|
| Cable Type | - detachable - detachable |
- | |
|---|---|---|---|
| Cable Length | - | 78.5 cm |
| FEATURES | JBL Everest 300 | Poly EncorePro 520V |
|---|
| Features | - | Boom mic length 135mm, 290° rotatable microphone |
|---|
| BATTERY AND CHARGING | JBL Everest 300 | Poly EncorePro 520V |
|---|
| Battery Type | Rechargeable - lithium polymer | - | |
|---|---|---|---|
| Battery Capacity | 610 mAh | - | |
| Battery Life | 20 hour(s) | - | |
| Charging Time | 2.5 hour(s) | - |
| WIRELESS LINK | JBL Everest 300 | Poly EncorePro 520V |
|---|
| Modulation Type | GFSK, 8-DPSK, DQPSK | - |
|---|
| CONNECTIONS | JBL Everest 300 | Poly EncorePro 520V |
|---|
| Connector Type | (mini-phone 3.5 mm 4-pole) | Headset (mini-phone 3.5mm) |
|---|
| OTHERS | JBL Everest 300 | Poly EncorePro 520V |
|---|
| Software Certification | - | Certified for Skype for Business, UC certified | |
|---|---|---|---|
| Supported Host Device OS | - | macOS, Windows | |
| Service & Support | Limited warranty - parts and labour - 1 year | Limited warranty - 2 years |
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