Poly Blackwire C720
 | Outdated Product Features: office; Design: overhead, open; swiveling earcups; Connection type: wired; USB: USB-A; Cable supply: single-sided; Range (m): 10; Detachable cable; Frequency range (Hz): 20 – 20000; Volume control; Multipoint; Operating time (music) (h): 10; |
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Poly Blackwire C720
Type:on-ear, office
Frequencies:20 – 20000 Hz
Battery:up to 10 h
All specifications
Specifications Blackwire C720
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E-Catalog UK editor, Headphones
Olexandr Cherkashche…, edited 08.04.2026
The information in the model description is for reference purposes.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
Catalog Poly 2026 - new arrivals, bestsellers, and the most relevant models Poly.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
Catalog Poly 2026 - new arrivals, bestsellers, and the most relevant models Poly.
Everything You Need to Know About Headphones: A Complete Technical GuideThe choice begins with understanding the design and features.
What characteristics should good headphones have?Guide to key features of headphones
Series Poly Blackwire (headsets)Compare using chart →
office, one earphone, overhead, closed, wired, 3.5 mm, USB-C, 2.15 m, 20 – 20000 Hz, 32 Ohm
office, one earphone, overhead, closed, wired, 3.5 mm, USB-A, 2.15 m, 20 – 20000 Hz, 32 Ohm
Additional features headphones Poly Blackwire C720:
- Modification of the C720-M model is optimized for Microsoft Lync and Microsoft Office Communicator
- Swivel ear cushion
- Smart Sensor — automatic call answering when putting on headset