Side by side comparison and review of JBL LIVE 670NC and Poly Savi 8240-M D2. 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 LIVE 670NC | Poly Savi 8240-M D2 |
|---|
| Product Type | Headphones - Bluetooth - wireless, wired - 3.5 mm jack | Headset | |
|---|---|---|---|
| Weight | 219 g | - | |
| Colour | Black | - | |
| Recommended Use | Portable electronics | - |
| SOUND QUALITY | JBL LIVE 670NC | Poly Savi 8240-M D2 |
|---|
| Headphones Form Factor | Full size | - | |
|---|---|---|---|
| Headphones Technology | Dynamic | - | |
| Foldable | Yes | - | JBL LIVE 670NC can be folded. |
| Connectivity Technology | 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 | - | JBL LIVE 670NC are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | True Adaptive Noise Canceling | - | |
| Sound Output Mode | Stereo | - | |
| Sound Effects | Signature Sound, JBL Spatial Sound | - | |
| Frequency Response | 20 - 20000 Hz | - | |
| Sensitivity | 98 dB | - | |
| Impedance | 32 Ohm | - | |
| Max Sound Pressure | 95 dB | - | |
| Diaphragm | 40 mm | - | |
| Features | TalkThru technology, 2 devices connectivity, Ambient Aware, Auto Play, Auto Pause, Speed Charge, Smart Ambient | - |
| MICROPHONE | JBL LIVE 670NC | Poly Savi 8240-M D2 |
|---|
| Form Factor | Built-in | - | |
|---|---|---|---|
| Audio Input Details | Beamforming | - | |
| Sensitivity | -38 dBV/Pascal | - | |
| Microphones Included | 2 | - |
| REMOTE CONTROL | JBL LIVE 670NC | Poly Savi 8240-M D2 |
|---|
| Controls | On/off, answer/end, voice assistant | - |
|---|
| CABLE | JBL LIVE 670NC | Poly Savi 8240-M D2 |
|---|
| Cable Type | USB-C charge cable - detachable Headphones cable - detachable - 2 m |
- | |
|---|---|---|---|
| Cable Length | 2 m | - | |
| Detachable Cable | Yes | - |
| FEATURES | JBL LIVE 670NC | Poly Savi 8240-M D2 |
|---|
| Features | Touch control | - | |
|---|---|---|---|
| Internet of Things (IoT) Compatible | Yes | - | |
| Intelligent Assistant | Google Assistant, Alexa | - | |
| Sensors | Touch sensor | - |
| BATTERY AND CHARGING | JBL LIVE 670NC | Poly Savi 8240-M D2 |
|---|
| 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 | JBL LIVE 670NC | Poly Savi 8240-M D2 |
|---|
| Connector Type | Headphones (mini-phone stereo 3.5 mm) | - |
|---|
| OTHERS | JBL LIVE 670NC | Poly Savi 8240-M D2 |
|---|
| Included Accessories | Carrying pouch, audio cable, USB-C charging cable | - | |
|---|---|---|---|
| Compatibility | Android phone, Windows, Android tablet | - | |
| Service & Support | Limited warranty - 2 years | - |
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