Side by side comparison and review of Sennheiser HD 2.30i (HD 2.0) and Poly Blackwire 3325. 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 | Sennheiser HD 2.30i (HD 2.0) | Poly Blackwire 3325 |
|---|
| Product Type | Headphones - wired - 3.5 mm jack | Headset - wired - USB, 3.5 mm jack | |
|---|---|---|---|
| Series | HD 2.0 | 3300 Series | |
| Height | - | 18.6 cm | |
| Width | - | 21.6 cm | |
| Depth | - | 5.6 cm | |
| Weight | - | 130 g | |
| Colour | Black | - | |
| Earpad Material | - | Leatherette | |
| Protection | - | Hearing protection | |
| Recommended Use | Portable electronics | - |
| SOUND QUALITY | Sennheiser HD 2.30i (HD 2.0) | Poly Blackwire 3325 |
|---|
| Headphones Form Factor | Full size | On-ear | |
|---|---|---|---|
| Headphones Technology | Dynamic | - | |
| Ear Cups Type | Closed | - | |
| Adjustable Headband | - | Yes | |
| Connectivity Technology | Wired | Wired | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 18 - 22000 Hz | 20 - 20000 Hz | Sennheiser HD 2.30i (HD 2.0) offer a larger frequency range than Poly Blackwire 3325. |
| Total Harmonic Distortion (THD) | 0.5% | - | |
| Sensitivity | 120 dB | 94 dB | Sennheiser HD 2.30i (HD 2.0) have higher sensitivity than Poly Blackwire 3325. |
| Impedance | 22 Ohm | 32 Ohm | |
| Diaphragm | - | 32 mm | |
| Features | - | SoundGuard Technology | |
| In-Cord Volume Control | - | Yes |
| MICROPHONE | Sennheiser HD 2.30i (HD 2.0) | Poly Blackwire 3325 |
|---|
| Type | - | Boom | |
|---|---|---|---|
| Noise Cancelling | - | Yes | Poly Blackwire 3325 microphone can cancel out ambient noise. |
| Frequency Response | - | 100 - 10000 Hz | |
| Sensitivity | - | -38 dB |
| REMOTE CONTROL | Sennheiser HD 2.30i (HD 2.0) | Poly Blackwire 3325 |
|---|
| Controls | - | Mute, volume, answer/end |
|---|
| CABLE | Sennheiser HD 2.30i (HD 2.0) | Poly Blackwire 3325 |
|---|
| Cable Type | Headphones cable - 1.4 m | Headset cable | |
|---|---|---|---|
| Cable Length | 1.4 m | - |
| CONNECTIONS | Sennheiser HD 2.30i (HD 2.0) | Poly Blackwire 3325 |
|---|
| Connector Type | Headphones (mini-phone stereo 3.5 mm 4-pole) | USB (4 PIN USB Type A) Headset (mini-phone 3.5mm) |
|---|
| OTHERS | Sennheiser HD 2.30i (HD 2.0) | Poly Blackwire 3325 |
|---|
| Included Accessories | Carrying pouch | Carrying pouch | |
|---|---|---|---|
| Compatibility | iPhone, iPad, iPod | - | |
| Software Certification | - | Certified for Microsoft Teams | |
| Service & Support | Limited warranty - 2 years | Limited warranty - 2 years |
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