Side by side comparison and review of JBL Jr310BT and Poly Blackwire 3320-M. 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 Jr310BT | Poly Blackwire 3320-M |
|---|
| Product Type | Headphones - Bluetooth - wireless | Headset - wired - USB-C | |
|---|---|---|---|
| Series | - | Blackwire 3300 series | |
| Height | - | 17.8 cm | |
| Width | - | 15.5 cm | |
| Depth | - | 3.2 cm | |
| Weight | 115 g | 130 g | JBL Jr310BT are lighter than JBL Jr310BT headphones. |
| Colour | Blue | Red | Green | Black | |
| Earpad Material | - | Foam | |
| Design | Kids | - | |
| Recommended Use | Portable electronics | Portable electronics, computer | |
| Bluetooth Range (Operating Distance) | 15 m | - |
| SOUND QUALITY | JBL Jr310BT | Poly Blackwire 3320-M |
|---|
| Headphones Form Factor | On-ear | On-ear | |
|---|---|---|---|
| Headphones Technology | Dynamic | - | |
| Adjustable Headband | Yes | Yes | |
| Foldable | Yes | - | JBL Jr310BT 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 | Poly Blackwire 3320-M are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | - | SoundGuard | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 20 - 20000 Hz | 20 - 20000 Hz | Both headphones offer the same frequency response. |
| Sensitivity | 90 dB | 116 dB | Poly Blackwire 3320-M have higher sensitivity than JBL Jr310BT. |
| Impedance | 32 Ohm | 32 Ohm | |
| Max Sound Pressure | 80 dB | 118 dB | |
| Diaphragm | 32 mm | 32 mm | Both headphones are designed with same thick diaphragm. |
| Features | - | Dynamic EQ optimised | |
| In-Cord Volume Control | - | Yes |
| MICROPHONE | JBL Jr310BT | Poly Blackwire 3320-M |
|---|
| Form Factor | Built-in | - | |
|---|---|---|---|
| Type | - | Boom | |
| Frequency Response | - | 100 - 10000 Hz | |
| Sensitivity | -40 dBV/Pascal | -38 dB |
| REMOTE CONTROL | JBL Jr310BT | Poly Blackwire 3320-M |
|---|
| Controls | Power on/off, answer/end, play/pause, reject call | Mute, volume, answer/end |
|---|
| BATTERY AND CHARGING | JBL Jr310BT | Poly Blackwire 3320-M |
|---|
| Battery Type | Headphone battery rechargeable - lithium polymer | - | |
|---|---|---|---|
| Battery Capacity | 400 mAh | - | |
| Battery Life | 30 hour(s) | - | |
| Charging Time | 2 hour(s) | - |
| CONNECTIONS | JBL Jr310BT | Poly Blackwire 3320-M |
|---|
| Connector Type | - | USB (24 pin USB-C) |
|---|
| OTHERS | JBL Jr310BT | Poly Blackwire 3320-M |
|---|
| Included Accessories | USB charging cable, sticker set | - | |
|---|---|---|---|
| Compatibility | - | Mac, Windows | |
| Software Certification | - | Certified for Microsoft Teams | |
| Supported Host Device OS | - | Windows 10, macOS | |
| Service & Support | Limited warranty - 1 year | - |
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