Circle™ SC 230 USB

ARTICLE NO. 504403


Circle™ SC 230 USB is a single-sided wired headset for all-day use featuring a USB connector and optimised for all major United Communications and softphone brands.


Colour   black

Connector   USB

Impedance   ~50 ohm

Frequency response (microphone)   150 Hz – 6,800 Hz

Frequency response (headphones)   50 Hz – 18,000 Hz

Microphone   noise-cancelling

Max. sound pressure level   113 dB limited by ActiveGard®

Cable length   2.9m  

Weight   58g




Included in the box:

  • Headset
  • Acoustic leatherette ear pad
  • Cable/clothing clip
  • Quick guide
  • Safety guide
  • Nylon protective pouch


Please find attached a copy of the fact sheet for Circle™ SC 230 USB.


Download the PDF.

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