Side by side comparison and review of JBL TUNE 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 TUNE 670NC | Poly Savi 8240-M D2 |
|---|
| Product Type | Headphones - Bluetooth - wireless, wired - 3.5 mm jack | Headset | |
|---|---|---|---|
| Weight | 220 g | - | |
| Colour | Black | Blue | White | Purple | - | |
| Recommended Use | Portable electronics | - |
| SOUND QUALITY | JBL TUNE 670NC | Poly Savi 8240-M D2 |
|---|
| Headphones Form Factor | Over ear | - | |
|---|---|---|---|
| Headphones Technology | Dynamic | - | |
| Adjustable Headband | Yes | - | |
| Foldable | Yes | - | JBL TUNE 670NC can be folded. |
| Connectivity Technology | Wireless, 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 | - | JBL TUNE 670NC are equipped with active noice cancellation. |
| Sound Output Mode | Stereo | - | |
| Sound Effects | Pure Bass | - | |
| Frequency Response | 20 - 20000 Hz | - | |
| Sensitivity | 103 dB | - | |
| Impedance | 32 Ohm | - | |
| Max Sound Pressure | 95 dB | - | |
| Diaphragm | 40 mm | - | |
| Features | Google Fast Pair | - |
| MICROPHONE | JBL TUNE 670NC | Poly Savi 8240-M D2 |
|---|
| Form Factor | Built-in | - | |
|---|---|---|---|
| Sensitivity | -30 dBV/Pascal | - |
| REMOTE CONTROL | JBL TUNE 670NC | Poly Savi 8240-M D2 |
|---|
| Controls | Volume, power on/off, play/pause, skip track, pair mode, voice assistant, ANC on/off, track forward, call | - |
|---|
| CABLE | JBL TUNE 670NC | Poly Savi 8240-M D2 |
|---|
| Cable Type | Audio cable - detachable - 1.2 m USB-C charge cable - detachable |
- |
|---|
| FEATURES | JBL TUNE 670NC | Poly Savi 8240-M D2 |
|---|
| Features | Multipoint Pairing | - | |
|---|---|---|---|
| Voice Control | Indirect | - |
| BATTERY AND CHARGING | JBL TUNE 670NC | Poly Savi 8240-M D2 |
|---|
| Battery Type | Headphone battery rechargeable - lithium polymer | - | |
|---|---|---|---|
| Battery Capacity | 610 mAh | - | |
| Battery Life | 50 hour(s) | - | |
| Battery Life Details | Continuous playback (noise cancelling ON / Bluetooth): up to 35 hours Continuous playback (noise cancelling OFF / Bluetooth): up to 50 hours |
- | |
| Charging Time | 2 hour(s) | - |
| WIRELESS LINK | JBL TUNE 670NC | Poly Savi 8240-M D2 |
|---|
| Modulation Type | GFSK, 8-DPSK, 4-DQPSK | - | |
|---|---|---|---|
| Radio Frequency Range | 2.4 - 2.4835GHz | - |
| CONNECTIONS | JBL TUNE 670NC | Poly Savi 8240-M D2 |
|---|
| Connector Type | USB-C (power only) (24 pin USB-C) Audio input / output (mini-phone 3.5mm) |
- |
|---|
| OTHERS | JBL TUNE 670NC | Poly Savi 8240-M D2 |
|---|
| Compliant Standards | ANATEL, EAC | - | |
|---|---|---|---|
| Service & Support | Limited warranty - 1 year | - |
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