Detailed comparison and review of Poly Blackwire 325 and Adesso Xtream H4. With our comprehensive overview, you can simply compare design, sound quality, but also other key features of both headphones and easily decide which ones are the right choice for you. Our goal is to help you identify the main differences between products and find the headphones that best fit your needs and expectations.
| DESIGN AND DIMENSIONS | Poly Blackwire 325 | Adesso Xtream H4 |
|---|
| Product Type | Headset - wired - USB, 3.5 mm jack | Headset - wired - 3.5 mm jack | |
|---|---|---|---|
| Series | 300 Series | - | |
| Weight | - | 99.8 g | |
| Headband Material | Metal | - | |
| Recommended Use | - | Portable electronics, computer |
| SOUND QUALITY | Poly Blackwire 325 | Adesso Xtream H4 |
|---|
| Headphones Form Factor | On-ear | On-ear | |
|---|---|---|---|
| Adjustable Headband | - | Yes | |
| Connectivity Technology | Wired | Wired | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 20 - 20000 Hz | 20 - 20000 Hz | Both headphones offer the same frequency response. |
| Sensitivity | - | 105 dB | |
| Impedance | - | 32 Ohm | |
| Diaphragm | - | 40 mm | |
| Features | SoundGuard Technology | - | |
| In-Cord Volume Control | Yes | Yes |
| MICROPHONE | Poly Blackwire 325 | Adesso Xtream H4 |
|---|
| Type | Boom | Boom | |
|---|---|---|---|
| Microphone Operation Mode | - | Omni-directional | |
| Frequency Response | 100 - 10000 Hz | - |
| REMOTE CONTROL | Poly Blackwire 325 | Adesso Xtream H4 |
|---|
| Controls | Mute, volume, answer/end | Volume control |
|---|
| CABLE | Poly Blackwire 325 | Adesso Xtream H4 |
|---|
| Cable Type | Headset cable - 2.13 m | Headset cable - straight - 1.8 m | |
|---|---|---|---|
| Cable Length | 2.13 m | 1.8 m |
| FEATURES | Poly Blackwire 325 | Adesso Xtream H4 |
|---|
| Additional Functions | DSP | - |
|---|
| CONNECTIONS | Poly Blackwire 325 | Adesso Xtream H4 |
|---|
| Connector Type | USB (4 PIN USB Type A) Headphones (mini-phone 3.5 mm 4-pole) |
Headphones (mini-phone stereo 3.5 mm) Microphone (mini-phone 3.5mm) |
|---|
| OTHERS | Poly Blackwire 325 | Adesso Xtream H4 |
|---|
| Service & Support | Limited warranty - 2 years | Limited warranty - 1 year |
|---|
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