Detailed comparison and review of JBL LIVE 660NC and Poly EncorePro 520V. 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 | JBL LIVE 660NC | Poly EncorePro 520V |
|---|
| Product Type | Headphones - Bluetooth - wireless, wired - 3.5 mm jack | Headset - wired - 3.5 mm jack | |
|---|---|---|---|
| Series | - | EncorePro 500 series | |
| Height | - | 6.7 cm | |
| Width | - | 11.1 cm | |
| Depth | - | 14.9 cm | |
| Weight | 265 g | 74 g | Poly EncorePro 520V are lighter than JBL LIVE 660NC headphones. |
| Colour | Blue | White | Black | Black | |
| Earpad Material | - | Artificial leather | |
| Recommended Use | Portable electronics | - |
| SOUND QUALITY | JBL LIVE 660NC | Poly EncorePro 520V |
|---|
| Headphones Form Factor | Full size | On-ear | |
|---|---|---|---|
| Headphones Technology | Dynamic | - | |
| Adjustable Headband | Yes | - | |
| Connectivity Technology | Wireless, wired | Wired | |
| Wireless Technology | Bluetooth | - | |
| Bluetooth Version | Bluetooth 5.0 | - | |
| Bluetooth Profiles | Hands-Free Profile (HFP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | - | |
| Active Noise Cancelling | Yes | Yes | Both headphones are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | Adaptive Noise Cancelling | SoundGuard DIGITAL | |
| Sound Output Mode | Stereo | - | |
| Sound Effects | Signature Sound | - | |
| Frequency Response | 16 - 20000 Hz | - | |
| Sensitivity | 97 dB/mW | - | |
| Impedance | 32 Ohm | - | |
| Max Sound Pressure | 94 dB | - | |
| Diaphragm | 40 mm | 5.6 mm | JBL LIVE 660NC have a thicker diaphragm than Poly EncorePro 520V. |
| Signal-To-Noise Ratio | - | 50 dB | |
| Features | Voice control, TalkThru technology, MultiPoint Technology, Ambient Aware, Google Fast Pair, Auto Play, Auto Pause, Speed Charge, Smart Ambient | - |
| MICROPHONE | JBL LIVE 660NC | Poly EncorePro 520V |
|---|
| Form Factor | Built-in | - | |
|---|---|---|---|
| Type | - | Boom | |
| Microphone Operation Mode | Stereo | Omni-directional | |
| Noise Cancelling | - | Yes | Poly EncorePro 520V microphone can cancel out ambient noise. |
| Frequency Response | - | 20 - 16000 Hz | |
| Sensitivity | -19 dBV/Pascal | 40 dB | |
| Sensitivity Margin | - | +/- 3dB |
| REMOTE CONTROL | JBL LIVE 660NC | Poly EncorePro 520V |
|---|
| Controls | Voice assistant | - |
|---|
| CABLE | JBL LIVE 660NC | Poly EncorePro 520V |
|---|
| Cable Type | USB-C charge cable - detachable Headphones cable - detachable |
- | |
|---|---|---|---|
| Cable Length | - | 78.5 cm | |
| Detachable Cable | Yes | - |
| FEATURES | JBL LIVE 660NC | Poly EncorePro 520V |
|---|
| Features | - | Boom mic length 135mm, 290° rotatable microphone | |
|---|---|---|---|
| Intelligent Assistant | Google Assistant, Alexa | - |
| BATTERY AND CHARGING | JBL LIVE 660NC | Poly EncorePro 520V |
|---|
| Battery Type | Headphone battery rechargeable - lithium polymer | - | |
|---|---|---|---|
| Battery Capacity | 750 mAh | - | |
| Battery Life | 50 hour(s) | - | |
| Battery Life Details | Continuous playback (active noise-cancelling on) (noise cancelling ON / Bluetooth): up to 40 hours Continuous playback (active noise-cancelling off) (noise cancelling OFF / Bluetooth): up to 50 hours |
- | |
| Charging Time | 2 hour(s) | - |
| CONNECTIONS | JBL LIVE 660NC | Poly EncorePro 520V |
|---|
| Connector Type | Headphones (mini-phone stereo 3.5 mm) | Headset (mini-phone 3.5mm) |
|---|
| OTHERS | JBL LIVE 660NC | Poly EncorePro 520V |
|---|
| Included Accessories | Carrying case, USB-C charging cable | - | |
|---|---|---|---|
| Compatibility | Android phone | - | |
| Software Certification | - | Certified for Skype for Business, UC certified | |
| Supported Host Device OS | - | macOS, Windows | |
| Service & Support | Limited warranty - 1 year | Limited warranty - 2 years |
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