Detailed comparison and review of Poly Blackwire C725-UC and V7 HU521-2EP. 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 C725-UC | V7 HU521-2EP |
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Product Type | Headset - wired - USB | Headset - wired - USB | |
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Series | 700 Series | - | |
Height | - | 18.8 cm | |
Width | - | 6.8 cm | |
Depth | - | 16.5 cm | |
Weight | - | 172.5 g | |
Colour | - | Black | |
Recommended Use | Computer | Computer |
SOUND QUALITY | Poly Blackwire C725-UC | V7 HU521-2EP |
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Headphones Form Factor | On-ear | On-ear | |
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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 HU521-2EP |
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Form Factor | Headset microphone | - | |
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Type | Boom | Boom | |
Frequency Response | 100 - 8000 Hz | - | |
Audio Input Details | - | Omni-directional - 300° | |
Sensitivity | - | -44 dB |
REMOTE CONTROL | Poly Blackwire C725-UC | V7 HU521-2EP |
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Controls | Mute, volume, answer/end | Mute, volume |
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CABLE | Poly Blackwire C725-UC | V7 HU521-2EP |
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Cable Type | USB cable - 2.04 m | Headset cable - 1.8 m | |
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Cable Length | 2.04 m | 1.8 m |
CONNECTIONS | Poly Blackwire C725-UC | V7 HU521-2EP |
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Connector Type | USB (4 PIN USB Type A) | USB (4 PIN USB Type A) |
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OTHERS | Poly Blackwire C725-UC | V7 HU521-2EP |
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Included Accessories | Carrying case | - | |
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Compliant Standards | - | FCC, RoHS | |
Service & Support | Limited warranty - 2 years | Limited warranty - 2 years |