In depth comparison and review of Poly Blackwire C725-UC and V7 HA520-2EP. 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 C725-UC | V7 HA520-2EP |
|---|
| Product Type | Headset - wired - USB | Headphones - wired - 3.5 mm jack | |
|---|---|---|---|
| Series | 700 Series | - | |
| Height | - | 18.8 cm | |
| Width | - | 6.8 cm | |
| Depth | - | 14.8 cm | |
| Weight | - | 163.5 g | |
| Colour | - | Black | |
| Recommended Use | Computer | - |
| SOUND QUALITY | Poly Blackwire C725-UC | V7 HA520-2EP |
|---|
| Headphones Form Factor | On-ear | On-ear | |
|---|---|---|---|
| Adjustable Headband | - | Yes | |
| Connectivity Technology | Wired | Wired | |
| Active Noise Cancelling | Yes | - | Poly Blackwire C725-UC are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | SoundGuard | - | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 20 - 20000 Hz | 20 - 20000 Hz | Both headphones offer the same frequency response. |
| Sensitivity | - | 110 dB | |
| Impedance | - | 32 Ohm | |
| Diaphragm | - | 40 mm | |
| In-Cord Volume Control | Yes | Yes |
| MICROPHONE | Poly Blackwire C725-UC | V7 HA520-2EP |
|---|
| Form Factor | Headset microphone | - | |
|---|---|---|---|
| Type | Boom | - | |
| Frequency Response | 100 - 8000 Hz | - |
| REMOTE CONTROL | Poly Blackwire C725-UC | V7 HA520-2EP |
|---|
| Controls | Mute, volume, answer/end | - |
|---|
| CABLE | Poly Blackwire C725-UC | V7 HA520-2EP |
|---|
| Cable Type | USB cable - 2.04 m | Headphones cable - 1.8 m | |
|---|---|---|---|
| Cable Length | 2.04 m | 1.8 m |
| CONNECTIONS | Poly Blackwire C725-UC | V7 HA520-2EP |
|---|
| Connector Type | USB (4 PIN USB Type A) | Headphones (mini-phone stereo 3.5 mm) |
|---|
| OTHERS | Poly Blackwire C725-UC | V7 HA520-2EP |
|---|
| Included Accessories | Carrying case | - | |
|---|---|---|---|
| Compliant Standards | - | FCC, RoHS | |
| Service & Support | Limited warranty - 2 years | Limited warranty - 2 years |
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