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Quick Start Guide
Quick Start Guide
  • Discover

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  • Connect

    • Quick disconnect cable

      In this section we show you how to connect with a QD cable.
      QD cables can be different depending on your phone system. Visit our Compatibility guide to find the cable that fits your system.
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  • Wear

    • Over the head

      Position one speaker over each ear with the band going over the top of your head, just as with a traditional pair of headphones.
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    • Adjust

      Adjust the microphone by rotating it around the headset and flexing the boom arm until it is positioned less than 2 cm (3/4") from your mouth.
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Video tutorials
Video tutorials

How to change ear cushions on your Jabra BIZ 2400 with a headband.

Watch the “Hands-on with Jabra Support” tutorial video. In this video we will show you how to change the ear cushions on a Jabra BIZ 2400 with a headband.

Video in English

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How to wear the Jabra BIZ™ 2400 headset correctly.

Watch the “Hands-on with Jabra Support” tutorial video. In this video we will show you how to wear the Jabra BIZ 2400 headset correctly and how to change the headset in different wearing styles, including Headband, Ear-hook, and Neckband.

Video in English

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There is no troubleshooting available for this product
Frequently Asked Questions
Frequently Asked Questions

FAQ - Top 5 questions

  • What should I do when I have trouble hearing the other person on the call when I use my Jabra headset?

    You can try turning up the volume on the phone or amplifier. Also, using an amplifier, such as the Jabra Link 850 or Jabra Link 860, is recommended. This enables you to turn up the volume. The use of DSP (Digital Signal Processing) can adjust sound levels to match user preferences and requirements.

    If the problem persists, you may consider switching from a mono to a duo headset.

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  • What can I do about noise and low volume when I use my Jabra headset with an analog phone?

    We recommend that you use a Jabra QD cord that matches your analog telephone or the Jabra GN1200 Smart Cord.

    See the Jabra Compatibility Guide to find the correct QD cord for your headset and analog phone.

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  • How do I obtain accessories for my Jabra device?

    You can order accessories and parts on the Jabra Accessories page. Enter the name of your Jabra device in the search field (for example, Jabra Revo Wireless), and then browse the available accessories and parts.

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  • Which Jabra cord is recommended for use with the Avaya 1600 and 9600 series telephones?

    It is recommended to use the Jabra GN1216 Avaya cord (Jabra product number 88001-03 or 88001-04) as a part of the corded solution with Avaya 1600 and 9600 series telephones. Note that the Jabra GN1216 Avaya cord must be connected to Avaya telephones using the headset port, and cannot be used with telephones that do not have a headset port.

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  • Are Jabra headsets safe to use?

    Yes, Jabra headsets are safe to use. All Jabra headsets feature a technology that protects the wearer against sudden, loud sound spikes. Many acoustic experts define acoustic shock as exposure to sounds over 135 dB SPL, although even lower sounds can damage the hearing. Therefore, all Jabra headsets cut off sounds at 118 dB SPL RMS (Root Mean Square).

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FAQ - all questions

  • Audio

    • What should I do when I have trouble hearing the other person on the call when I use my Jabra headset?

      You can try turning up the volume on the phone or amplifier. Also, using an amplifier, such as the Jabra Link 850 or Jabra Link 860, is recommended. This enables you to turn up the volume. The use of DSP (Digital Signal Processing) can adjust sound levels to match user preferences and requirements.

      If the problem persists, you may consider switching from a mono to a duo headset.

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    • What can I do about noise and low volume when I use my Jabra headset with an analog phone?

      We recommend that you use a Jabra QD cord that matches your analog telephone or the Jabra GN1200 Smart Cord.

      See the Jabra Compatibility Guide to find the correct QD cord for your headset and analog phone.

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  • Compatibility

    • Which Jabra cord is recommended for use with the Avaya 1600 and 9600 series telephones?

      It is recommended to use the Jabra GN1216 Avaya cord (Jabra product number 88001-03 or 88001-04) as a part of the corded solution with Avaya 1600 and 9600 series telephones. Note that the Jabra GN1216 Avaya cord must be connected to Avaya telephones using the headset port, and cannot be used with telephones that do not have a headset port.

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  • Accessories

    • How do I obtain accessories for my Jabra device?

      You can order accessories and parts on the Jabra Accessories page. Enter the name of your Jabra device in the search field (for example, Jabra Revo Wireless), and then browse the available accessories and parts.

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  • Technical Information

    • Are Jabra headsets safe to use?

      Yes, Jabra headsets are safe to use. All Jabra headsets feature a technology that protects the wearer against sudden, loud sound spikes. Many acoustic experts define acoustic shock as exposure to sounds over 135 dB SPL, although even lower sounds can damage the hearing. Therefore, all Jabra headsets cut off sounds at 118 dB SPL RMS (Root Mean Square).

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    • Is the Jabra Biz 2400 Series safe to use?

      ​Many acoustic experts define acoustic shock as exposure to sounds over 135 dB SPL, although even lower sounds can damage the hearing. 

      The Jabra Biz 2400 Series, like all Jabra headsets, cuts off sounds at 118 dB SPL RMS (Root Mean Square). The Jabra Biz 2400 Series features technology that protects users against the effects of sudden spikes of loud sound, such as the high pitched tone from a fax machine.

      Furthermore, the Jabra Biz 2400 USB features technology that ensures safe average sound levels, making it the world’s first corded USB headset with built-in compliance to the strict noise-at-work regulations enforced in the EU.

      Used with the Jabra GN8210 digital amplifier, the Jabra Biz 2400 IP and Jabra Biz 2400 headsets also comply with international health and safety directives to protect users against the dangers associated with long-term cumulative exposure to noise.

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Download area
Download area

Manuals

Documentation for download Language or Region File format File size
Datasheet PDF 1,5 MB Download
Declaration of Conformity English PDF 74,3 KB Download
Quick Start Guide English PDF 940,1 KB Download
Serial Number Location English PDF 412,5 KB Download
User Manual PDF 552,6 KB Download