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Califone International 4100-USB
USB Stereo Headset, with Microphone

OUR PART #:  4100-USB

The USB Headset is the first headset designed specifically for school use with USB connectivity.
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Our Price: $44.25
List Price: $67.00
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Califone International 4100-USB
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The USB Headset is the first headset designed specifically for school use with USB connectivity. Its unidirectional mic and noise-reducing around-ear earcups are ideal for high speed internet use for distance learning applications, tutorials, language learning and situations requiring isolated vocalized feedback.


  • Recessed wiring resists prying fingers for school safety
  • Fully adjustable headstrap, earcups and headstrap made with rugged ABS plastic for added durability in high-use settings
  • 10’ straight cord won’t tangle with other wires and is lengthy enough to reach rear computer ports
  • Backwards-compatible USB 2.0 plug ideal for high speed internet use, delivers a more balanced sound distribution with “plug and
    play” performance (meaning Windows and Mac compatibility)
  • Accessible in-line volume and mute control, mic on/off switch
  • Unidirectional electret mic with flexible gooseneck and built-in wind screen reduces recording of unintended sounds
  • Permanently attached cord with reinforced connection resists accidental pull out for classroom safety
  • Noise-reducing earcup lowers ambient noise so volume does not need to be as high - recommended by the American Speech-Language-Hearing Association for hearing safety
  • One year warranty for school use - unlike headsets purchased at consumer electronics stores whose warranties would be voided if
    used in schools



  • Frequency Range: 30-20,000 Hz
  • Sensitivity: 97dB +/-3dB
  • Impedance: NA
  • Maximum Power: Input 80mW
  • Headband Type: Comfort Sling made using ABS plastic for durability
  • Earcup: Noise-reducing with ABS plastic for durability
  • Cord: connection to earcup Double-reinforced, channel lock strain relief system resists accidental pull out


  • Frequency Range: 70-20,000 Hz
  • Sensitivity: -47dB +/-3dB
  • Impedance: 2.2KOhms +/-30% (at 1 KHz)
  • Maximum Power Input: 200mW
  • USB: activated host interface 1.0 / 1.1 / 2.0 (backwards compatible)
  • Type: Electret mic
  • Polar Pattern: Unidirectional
  • Adjustability: Universal joint for full flexibility
  • Operating volt: Typical 5 volt with USB
  • Cord Length: 8 feet
  • Weight: 10 ounces, shipping weight 2 lbs.
  • Warranty: For school, business, church and gov’t uses for 1 year from purchase date

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