Side by side comparison and review of Poly Blackwire 3320-M and JBL LIVE 670NC. 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 Blackwire 3320-M | JBL LIVE 670NC |
|---|
| Product Type | Headset - wired - USB-C | Headphones - Bluetooth - wireless, wired - 3.5 mm jack | |
|---|---|---|---|
| Series | Blackwire 3300 series | - | |
| Height | 17.8 cm | - | |
| Width | 15.5 cm | - | |
| Depth | 3.2 cm | - | |
| Weight | 130 g | 219 g | Poly Blackwire 3320-M are lighter than Poly Blackwire 3320-M headphones. |
| Colour | Black | Black | |
| Earpad Material | Foam | - | |
| Recommended Use | Portable electronics, computer | Portable electronics |
| SOUND QUALITY | Poly Blackwire 3320-M | JBL LIVE 670NC |
|---|
| Headphones Form Factor | On-ear | Full size | |
|---|---|---|---|
| Headphones Technology | - | Dynamic | |
| Adjustable Headband | Yes | - | |
| Foldable | - | Yes | JBL LIVE 670NC can be folded. |
| Connectivity Technology | Wired | Wireless, wired | |
| Wireless Technology | - | Bluetooth | |
| Bluetooth Version | - | Bluetooth 5.3 | |
| 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 | SoundGuard | True Adaptive Noise Canceling | |
| Sound Output Mode | Stereo | Stereo | |
| Sound Effects | - | Signature Sound, JBL Spatial Sound | |
| Frequency Response | 20 - 20000 Hz | 20 - 20000 Hz | Both headphones offer the same frequency response. |
| Sensitivity | 116 dB | 98 dB | Poly Blackwire 3320-M have higher sensitivity than JBL LIVE 670NC. |
| Impedance | 32 Ohm | 32 Ohm | |
| Max Sound Pressure | 118 dB | 95 dB | |
| Diaphragm | 32 mm | 40 mm | JBL LIVE 670NC have a thicker diaphragm than Poly Blackwire 3320-M. |
| Features | Dynamic EQ optimised | TalkThru technology, 2 devices connectivity, Ambient Aware, Auto Play, Auto Pause, Speed Charge, Smart Ambient | |
| In-Cord Volume Control | Yes | - |
| MICROPHONE | Poly Blackwire 3320-M | JBL LIVE 670NC |
|---|
| Form Factor | - | Built-in | |
|---|---|---|---|
| Type | Boom | - | |
| Frequency Response | 100 - 10000 Hz | - | |
| Audio Input Details | - | Beamforming | |
| Sensitivity | -38 dB | -38 dBV/Pascal | |
| Microphones Included | - | 2 |
| REMOTE CONTROL | Poly Blackwire 3320-M | JBL LIVE 670NC |
|---|
| Controls | Mute, volume, answer/end | On/off, answer/end, voice assistant |
|---|
| CABLE | Poly Blackwire 3320-M | JBL LIVE 670NC |
|---|
| Cable Type | - | USB-C charge cable - detachable Headphones cable - detachable - 2 m |
|
|---|---|---|---|
| Cable Length | - | 2 m | |
| Detachable Cable | - | Yes |
| FEATURES | Poly Blackwire 3320-M | JBL LIVE 670NC |
|---|
| Features | - | Touch control | |
|---|---|---|---|
| Internet of Things (IoT) Compatible | - | Yes | |
| Intelligent Assistant | - | Google Assistant, Alexa | |
| Sensors | - | Touch sensor |
| BATTERY AND CHARGING | Poly Blackwire 3320-M | JBL LIVE 670NC |
|---|
| Battery Type | - | Headphone battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Capacity | - | 850 mAh | |
| Battery Life | - | 65 hour(s) | |
| Battery Life Details | - | Continuous playback (active noise-cancelling on) (noise cancelling ON / Bluetooth): up to 50 hours Continuous playback (active noise-cancelling off) (noise cancelling OFF / Bluetooth): up to 65 hours Continuous playback (active noise-cancelling on) (noise cancelling ON / cable connection): up to 40 hours Continuous talk (active noise-cancelling on) (noise cancelling ON): up to 28 hours Continuous talk (active noise-cancelling off) (noise cancelling OFF): up to 33 hours |
|
| Charging Time | - | 3 hour(s) |
| CONNECTIONS | Poly Blackwire 3320-M | JBL LIVE 670NC |
|---|
| Connector Type | USB (24 pin USB-C) | Headphones (mini-phone stereo 3.5 mm) |
|---|
| OTHERS | Poly Blackwire 3320-M | JBL LIVE 670NC |
|---|
| Included Accessories | - | Carrying pouch, audio cable, USB-C charging cable | |
|---|---|---|---|
| Compatibility | Mac, Windows | Android phone, Windows, Android tablet | |
| Software Certification | Certified for Microsoft Teams | - | |
| Supported Host Device OS | Windows 10, macOS | - | |
| Service & Support | - | Limited warranty - 2 years |
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