Side by side comparison and review of Poly Blackwire 325 and JBL TUNE 770NC. 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 325 | JBL TUNE 770NC |
|---|
| Product Type | Headset - wired - USB, 3.5 mm jack | Headphones - Bluetooth - wireless, wired - 3.5 mm jack | |
|---|---|---|---|
| Series | 300 Series | - | |
| Weight | - | 232 g | |
| Colour | - | Black | Purple | Blue | White | |
| Headband Material | Metal | - | |
| Recommended Use | - | Portable electronics |
| SOUND QUALITY | Poly Blackwire 325 | JBL TUNE 770NC |
|---|
| Headphones Form Factor | On-ear | Full size | |
|---|---|---|---|
| Headphones Technology | - | Dynamic | |
| Foldable | - | Yes | JBL TUNE 770NC 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 | JBL TUNE 770NC are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | - | Adaptive Noise Cancelling | |
| Sound Output Mode | Stereo | Stereo | |
| Sound Effects | - | Pure Bass | |
| Frequency Response | 20 - 20000 Hz | 20 - 20000 Hz | Both headphones offer the same frequency response. |
| Sensitivity | - | 100 dB | |
| Impedance | - | 32 Ohm | |
| Max Sound Pressure | - | 94 dB | |
| Diaphragm | - | 40 mm | |
| Simultaneously Connectable Devices Qty (Multipoint) | - | 2 | JBL TUNE 770NC have the ability to connect to multiple devices simultaneously. |
| Features | SoundGuard Technology | TalkThru technology, MultiPoint Technology, Ambient Aware, Speed Charge, Smart Ambient, VoiceAware | |
| In-Cord Volume Control | Yes | - |
| MICROPHONE | Poly Blackwire 325 | JBL TUNE 770NC |
|---|
| Form Factor | - | Built-in | |
|---|---|---|---|
| Type | Boom | - | |
| Frequency Response | 100 - 10000 Hz | - | |
| Sensitivity | - | -40 dBV/Pascal |
| REMOTE CONTROL | Poly Blackwire 325 | JBL TUNE 770NC |
|---|
| Controls | Mute, volume, answer/end | Voice assistant |
|---|
| CABLE | Poly Blackwire 325 | JBL TUNE 770NC |
|---|
| Cable Type | Headset cable - 2.13 m | Charging cable - 1.2 m Audio cable - 1.2 m |
|
|---|---|---|---|
| Cable Length | 2.13 m | 1.2 m | |
| Detachable Cable | - | Yes |
| FEATURES | Poly Blackwire 325 | JBL TUNE 770NC |
|---|
| Additional Functions | DSP | - |
|---|
| BATTERY AND CHARGING | Poly Blackwire 325 | JBL TUNE 770NC |
|---|
| Battery Type | - | Headphone battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Capacity | - | 690 mAh | |
| Battery Life | - | 70 hour(s) | |
| Battery Life Details | - | Continuous playback (active noise-cancelling on) (noise cancelling ON / Bluetooth): up to 44 hours Continuous playback (active noise-cancelling off) (noise cancelling OFF / Bluetooth): up to 70 hours Continuous playback (active noise-cancelling on) (noise cancelling ON): up to 30 hours Continuous talk (active noise-cancelling on) (noise cancelling ON): up to 30 hours Continuous talk (active noise-cancelling off) (noise cancelling OFF): up to 39 hours |
|
| Charging Time | - | 2 hour(s) |
| CONNECTIONS | Poly Blackwire 325 | JBL TUNE 770NC |
|---|
| Connector Type | USB (4 PIN USB Type A) Headphones (mini-phone 3.5 mm 4-pole) |
- |
|---|
| OTHERS | Poly Blackwire 325 | JBL TUNE 770NC |
|---|
| Included Accessories | - | Audio cable, USB-C charging cable | |
|---|---|---|---|
| Service & Support | Limited warranty - 2 years | - |
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