Detailed comparison and review of Poly Blackwire 325-M and SOUL X-TRA. 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-M | SOUL X-TRA |
|---|
| Product Type | Headset - wired - USB, 3.5 mm jack | Headphones - Bluetooth - wireless - 3.5 mm jack | |
|---|---|---|---|
| Series | 300 Series | - | |
| Height | - | 20 cm | |
| Width | - | 16.4 cm | |
| Depth | - | 7.2 cm | |
| Weight | - | 198 g | |
| Colour | - | Blue | |
| Headband Material | Metal | - | |
| Design | - | Sports | |
| Recommended Use | - | Portable electronics | |
| Bluetooth Range (Operating Distance) | - | 10 m |
| SOUND QUALITY | Poly Blackwire 325-M | SOUL X-TRA |
|---|
| Headphones Form Factor | On-ear | Full size | |
|---|---|---|---|
| Headphones Technology | - | Dynamic | |
| Adjustable Headband | - | Yes | |
| Foldable | - | Yes | SOUL X-TRA can be folded. |
| Connectivity Technology | Wired | Wireless | |
| Wireless Technology | - | Bluetooth | |
| Bluetooth Version | - | Bluetooth 4.0 | |
| Bluetooth Profiles | - | Hands-Free Profile (HFP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 20 - 20000 Hz | 20 - 20000 Hz | Both headphones offer the same frequency response. |
| Diaphragm | - | 40 mm | |
| Magnet Material | - | Neodymium | |
| Features | SoundGuard Technology | - | |
| In-Cord Volume Control | Yes | - |
| MICROPHONE | Poly Blackwire 325-M | SOUL X-TRA |
|---|
| Form Factor | - | Built-in | |
|---|---|---|---|
| Type | Boom | - | |
| Frequency Response | 100 - 10000 Hz | - |
| REMOTE CONTROL | Poly Blackwire 325-M | SOUL X-TRA |
|---|
| Controls | Mute, volume, answer/end | Volume, on/off, answer/end, play/pause, next/previous track, reject call, redial |
|---|
| CABLE | Poly Blackwire 325-M | SOUL X-TRA |
|---|
| Cable Type | Headset cable - 2.13 m | USB charge cable - detachable Headphones cable - detachable - straight |
|
|---|---|---|---|
| Cable Length | 2.13 m | - |
| FEATURES | Poly Blackwire 325-M | SOUL X-TRA |
|---|
| Additional Functions | DSP | - |
|---|
| BATTERY AND CHARGING | Poly Blackwire 325-M | SOUL X-TRA |
|---|
| Battery Type | - | Headphone battery rechargeable - lithium polymer | |
|---|---|---|---|
| Battery Capacity | - | 320 mAh | |
| Battery Life | - | 24 hour(s) | |
| Charging Time | - | 2 hour(s) |
| WIRELESS LINK | Poly Blackwire 325-M | SOUL X-TRA |
|---|
| Transmission Range | - | 10 m |
|---|
| CONNECTIONS | Poly Blackwire 325-M | SOUL X-TRA |
|---|
| Connector Type | USB (4 PIN USB Type A) Headphones (mini-phone 3.5 mm 4-pole) |
Headphones (mini-phone stereo 3.5 mm) |
|---|
| OTHERS | Poly Blackwire 325-M | SOUL X-TRA |
|---|
| Included Accessories | - | Carrying case | |
|---|---|---|---|
| Service & Support | Limited warranty - 2 years | Limited warranty - 1 year |
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