Detailed comparison and review of Poly Blackwire C725-UC and EPOS I SENNHEISER GSP 670. 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 | EPOS I SENNHEISER GSP 670 |
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Product Type | Headset - wired - USB | Headset - 7.1 channel - Bluetooth - wireless | |
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Series | 700 Series | Gaming | |
Height | - | 18 cm | |
Width | - | 19 cm | |
Depth | - | 8 cm | |
Weight | - | 398 g | |
Colour | - | Black | |
Earpad Material | - | Leatherette | |
Recommended Use | Computer | Game console, computer | |
Gaming | - | Yes | |
Bluetooth Range (Operating Distance) | - | 10 m |
SOUND QUALITY | Poly Blackwire C725-UC | EPOS I SENNHEISER GSP 670 |
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Headphones Form Factor | On-ear | Full size | |
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Headphones Technology | - | Dynamic | |
Ear Cups Type | - | Closed | |
Adjustable Headband | - | Yes | |
Connectivity Technology | Wired | Wireless | |
Wireless Technology | - | Bluetooth | |
Bluetooth Version | - | Bluetooth 5.0 | |
Bluetooth Audio Codec | - | SBC | |
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 | 10 - 23000 Hz | EPOS I SENNHEISER GSP 670 offer a larger frequency range than Poly Blackwire C725-UC. |
Max Sound Pressure | - | 112 dB | |
In-Cord Volume Control | Yes | - |
MICROPHONE | Poly Blackwire C725-UC | EPOS I SENNHEISER GSP 670 |
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Form Factor | Headset microphone | Headset microphone | |
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Type | Boom | Boom | |
Microphone Operation Mode | - | Bi-directional | |
Noise Cancelling | - | Yes | EPOS I SENNHEISER GSP 670 microphone can cancel out ambient noise. |
Frequency Response | 100 - 8000 Hz | 10 - 7300 Hz | Poly Blackwire C725-UC offer a larger microphone frequency range than EPOS I SENNHEISER GSP 670. |
Sensitivity | - | -47 dBV/Pascal | |
Microphone Features | - | Mute function |
REMOTE CONTROL | Poly Blackwire C725-UC | EPOS I SENNHEISER GSP 670 |
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Controls | Mute, volume, answer/end | Volume |
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CABLE | Poly Blackwire C725-UC | EPOS I SENNHEISER GSP 670 |
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Cable Type | USB cable - 2.04 m | USB charge cable - detachable - 1.5 m | |
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Cable Length | 2.04 m | - |
BATTERY AND CHARGING | Poly Blackwire C725-UC | EPOS I SENNHEISER GSP 670 |
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Battery Type | - | Headset battery rechargeable | |
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Battery Life | - | 20 hour(s) |
CONNECTIONS | Poly Blackwire C725-UC | EPOS I SENNHEISER GSP 670 |
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Connector Type | USB (4 PIN USB Type A) | - |
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OTHERS | Poly Blackwire C725-UC | EPOS I SENNHEISER GSP 670 |
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Included Accessories | Carrying case | Bluetooth dongle | |
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Compatibility | - | Mac, Windows | |
Service & Support | Limited warranty - 2 years | Limited warranty - 2 years |