In depth comparison and review of Poly Blackwire 3325 and JBL TUNE 520BT. Compare design, audio features, functions and other important specifications to easily choose the right headphones for you. Our goal is to help you uncover differences between the products and find the headphones that will best fit your needs.
| DESIGN AND DIMENSIONS | Poly Blackwire 3325 | JBL TUNE 520BT |
|---|
| Product Type | Headset - wired - USB, 3.5 mm jack | Headphones - Bluetooth - wireless | |
|---|---|---|---|
| Series | 3300 Series | - | |
| Height | 18.6 cm | - | |
| Width | 21.6 cm | - | |
| Depth | 5.6 cm | - | |
| Weight | 130 g | 157 g | Poly Blackwire 3325 are lighter than Poly Blackwire 3325 headphones. |
| Colour | - | Black | Purple | White | Blue | |
| Earpad Material | Leatherette | - | |
| Protection | Hearing protection | - | |
| Recommended Use | - | Portable electronics |
| SOUND QUALITY | Poly Blackwire 3325 | JBL TUNE 520BT |
|---|
| Headphones Form Factor | On-ear | On-ear | |
|---|---|---|---|
| Headphones Technology | - | Dynamic | |
| Adjustable Headband | Yes | Yes | |
| Foldable | - | Yes | JBL TUNE 520BT can be folded. |
| Connectivity Technology | Wired | Wireless | |
| 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) | |
| 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 | 94 dB | 102 dB | JBL TUNE 520BT have higher sensitivity than Poly Blackwire 3325. |
| Impedance | 32 Ohm | 30 Ohm | |
| Max Sound Pressure | - | 95 dB | |
| Diaphragm | 32 mm | 33 mm | JBL TUNE 520BT have a thicker diaphragm than Poly Blackwire 3325. |
| Features | SoundGuard Technology | - | |
| In-Cord Volume Control | Yes | - |
| MICROPHONE | Poly Blackwire 3325 | JBL TUNE 520BT |
|---|
| Form Factor | - | Built-in | |
|---|---|---|---|
| Type | Boom | - | |
| Noise Cancelling | Yes | - | Poly Blackwire 3325 microphone can cancel out ambient noise. |
| Frequency Response | 100 - 10000 Hz | - | |
| Sensitivity | -38 dB | -29 dB |
| REMOTE CONTROL | Poly Blackwire 3325 | JBL TUNE 520BT |
|---|
| Controls | Mute, volume, answer/end | Volume |
|---|
| CABLE | Poly Blackwire 3325 | JBL TUNE 520BT |
|---|
| Cable Type | Headset cable | USB-C cable |
|---|
| FEATURES | Poly Blackwire 3325 | JBL TUNE 520BT |
|---|
| Features | - | Multipoint Pairing, VoiceAware | |
|---|---|---|---|
| Internet of Things (IoT) Compatible | - | Yes | |
| Intelligent Assistant | - | Google Assistant ready, Siri ready |
| BATTERY AND CHARGING | Poly Blackwire 3325 | JBL TUNE 520BT |
|---|
| Battery Type | - | Headphone battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Capacity | - | 450 mAh | |
| Battery Life | - | 57 hour(s) | |
| Battery Life Details | - | Continuous playback (with 5 min charge): up to 3 hours | |
| Charging Time | - | 2 hour(s) |
| WIRELESS LINK | Poly Blackwire 3325 | JBL TUNE 520BT |
|---|
| Modulation Type | - | GFSK, 8-DPSK, 4-DQPSK | |
|---|---|---|---|
| Radio Frequency Range | - | 2.4 - 2.4835GHz |
| CONNECTIONS | Poly Blackwire 3325 | JBL TUNE 520BT |
|---|
| Connector Type | USB (4 PIN USB Type A) Headset (mini-phone 3.5mm) |
- |
|---|
| OTHERS | Poly Blackwire 3325 | JBL TUNE 520BT |
|---|
| Included Accessories | Carrying pouch | Charging cable | |
|---|---|---|---|
| Software Certification | Certified for Microsoft Teams | - | |
| Service & Support | Limited warranty - 2 years | - |
cs
sk
de
it
es
fr
hu
pt
ru
pl
br
ro
