In depth comparison and review of Poly Blackwire 3325 and OneOdio A30. 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 | OneOdio A30 |
|---|
| 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 | - | |
| Earpad Material | Leatherette | - | |
| Protection | Hearing protection | - | |
| Recommended Use | - | Portable electronics |
| SOUND QUALITY | Poly Blackwire 3325 | OneOdio A30 |
|---|
| Headphones Form Factor | On-ear | Full size | |
|---|---|---|---|
| Adjustable Headband | Yes | Yes | |
| Foldable | - | Yes | OneOdio A30 can be folded. |
| Connectivity Technology | Wired | Wireless | |
| Wireless Technology | - | Bluetooth | |
| Bluetooth Version | - | Bluetooth 5.0 | |
| Active Noise Cancelling | - | Yes | OneOdio A30 are equipped with active noice cancellation. |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 20 - 20000 Hz | - | |
| Sensitivity | 94 dB | - | |
| Impedance | 32 Ohm | - | |
| Diaphragm | 32 mm | 40 mm | OneOdio A30 have a thicker diaphragm than Poly Blackwire 3325. |
| Features | SoundGuard Technology | - | |
| In-Cord Volume Control | Yes | - |
| MICROPHONE | Poly Blackwire 3325 | OneOdio A30 |
|---|
| Form Factor | - | Built-in | |
|---|---|---|---|
| Type | Boom | - | |
| Noise Cancelling | Yes | Yes | The microphones on both headphones can cancel out ambient noise. |
| Noise Cancelling Technology | - | cVc 8.0 (clear Voice capture) by Qualcomm | |
| Frequency Response | 100 - 10000 Hz | - | |
| Sensitivity | -38 dB | - |
| REMOTE CONTROL | Poly Blackwire 3325 | OneOdio A30 |
|---|
| Controls | Mute, volume, answer/end | Volume, on/off, next/previous track, ANC on/off |
|---|
| CABLE | Poly Blackwire 3325 | OneOdio A30 |
|---|
| Cable Type | Headset cable | - |
|---|
| BATTERY AND CHARGING | Poly Blackwire 3325 | OneOdio A30 |
|---|
| Battery Type | - | Headphone battery rechargeable | |
|---|---|---|---|
| Battery Capacity | - | 500 mAh | |
| Battery Life | - | 50 hour(s) | |
| Battery Life Details | - | (noise cancelling ON): up to 50 hours (noise cancelling OFF / Bluetooth): up to 30 hours (noise cancelling ON / Bluetooth): up to 20 hours |
|
| Charging Time | - | 2.5 hours |
| CONNECTIONS | Poly Blackwire 3325 | OneOdio A30 |
|---|
| Connector Type | USB (4 PIN USB Type A) Headset (mini-phone 3.5mm) |
Audio line-in (mini-phone stereo 3.5 mm) |
|---|
| OTHERS | Poly Blackwire 3325 | OneOdio A30 |
|---|
| Included Accessories | Carrying pouch | - | |
|---|---|---|---|
| Software Certification | Certified for Microsoft Teams | - | |
| Service & Support | Limited warranty - 2 years | - |
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