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    Jabra

    Jabra Biz 2400 II Duo QD Wired Headset (Renewed)

    Jabra Biz 2400 II Duo QD Wired Headset (Renewed)

    Certified Renewed · 1-Year Warranty

    $33.31 USD
    Temporarily out of stock

    This certified renewed unit is between batches. Leave your email and we'll let you know the moment it's back — usually within days.

    Browse in-stock alternatives →

    • Free shipping
    • 90-day returns
    • 1-year warranty
    Works withDesk phonePC / softphone

    Buying for a team? Get a volume quote →

    Shipping & Returns

    For an even easier and more trusted shopping experience, you can checkout on our website with your existing Amazon account.

    • One familiar login to identify and purchase
    • Personal information security
    • Built in fraud and payment protection
    • You're covered with Amazons A-Z guarantee

    Shipping is always FREE

    Orders placed before 3pm PST will ship that same day from California and will arrive within 2-5 business days. If you need faster shipping, at checkout there's expedited shipping options available. 

    Returns are easy and free!

    You have 90 days from the date of purchase to return your order for a full refund. Please follow the quick steps below to submit a return.

    1. Email your order number to info@renewedheadsets.com and please provide reason for return.
    2. Once return is approved, you'll receive an email with a pre-paid shipping label to return your order for a full refund
    3. Refunds take 2-5 business days to be issued from the day the return is received in our warehouse

    *ALL RETURNS must have an RMA number on the box or the package will be refused and the return process will be delayed.

     

    Warranty

    Warranty replacements are fast and free, the way it should be!

    Renewed Headsets covers you with a 1 year advanced replacement warranty for peace of mind. To get a warranty replacement, please follow the quick steps below.

    1. Email info@renewedheadsets.com with your order number and description of the issue.
    2. A replacement will ship that same day and you'll be emailed a pre-paid shipping label to send the defective headset back

    *Please use the shipping label provided by Renewed Headsets or the package could get lost.

     *Warranty, service and support is covered from Renewed Headsets, NOT manufacturer.

    View full details
    Certified Renewed Grade A Cosmetics 1-Year Warranty Professionally Restored
    How we refurbish

    About this headset

    The Jabra Biz 2400 II Duo is a wired, dual-ear professional headset built for high-volume contact centres and busy desks. It connects over a Quick Disconnect (QD) cable, so it works with a compatible desk phone or, with the right QD adapter, a PC or softphone. The dual-ear (Duo) design covers both ears to help agents stay focused in loud, open-plan environments.

    Key features

    • Noise-cancelling boom microphone that filters background chatter for clearer calls
    • Quick Disconnect (QD) connector for walking away from the desk without ending the call
    • Duo dual-ear wearing style for better concentration in busy rooms
    • Works with desk phones and, via a QD adapter, PC and softphone setups
    • Durable, all-day comfort design built for contact-centre use

    Every unit is Certified Renewed: fully tested, professionally cleaned, and restored to Grade A cosmetic condition, with a new battery fitted where one is needed. It ships ready to work and is backed by our 1-year warranty, so you get proven business hardware at a refurbished price without the risk.

    Certified Renewed · Inspection report

    Every headset earns the seal

    Every headset runs the same five checks before it earns the seal — the same language on the box, here, and across the site.

    Report ID RH-76521535 · Passed

    Electronically TestedAudio · mic · range · battery
    Professionally Cleaned & SanitizedFresh ear cushions fitted
    Parts & BatteryNew battery & parts where needed
    Grade A CosmeticsPresentation-ready condition
    1-Year Warranty + Lifetime SupportAdvanced replacement included
    David Merritt, Operating Owner of Renewed Headsets
    Who stands behind this

    We are a small US team, and my name is on this. Every headset is electronically tested, cleaned and restored to Grade A before it ships, and it is backed by a 1-year advanced-replacement warranty, 90-day returns and lifetime support. If yours arrives and it is not right, contact us and we will replace it.

    David Merritt Operating Owner · Renewed Headsets

    Talk to a human
    Buying for a team

    Built for procurement

    • Net 30on approved credit
    • Purchase orders acceptedPOs from business, education & government
    • W-9 on requestsent same business day
    • Tax-exempt ordersresale, nonprofit & government certificates
    QuantityYou save
    10+5%
    25+10%
    50+15%

    Quoted and invoiced — send your quantities and we confirm pricing, usually within one business day.

    Get a volume quote or call (866) 773-1226 · 7am–4pm PT, Mon–Fri

    How it compares

    Jabra Biz 2400 II Duo Q...Jabra PRO 9450 Mono Mid...Jabra Engage 65 Stereo ...Jabra Evolve 20 USB DUO...
    Connection QD (Quick Disconnect)DECT wireless (base; desk phone + USB softphone)DECT wireless (base with RJ9/RJ45 + USB)Wired USB-A
    Wearing style DuoConvertibleDuo / StereoDuo / Stereo
    Microphone Noise-cancelling boomNoise-cancelling boomNoise-cancelling boomNoise-cancelling uni-directional boom
    Price $33.31$75.99$108.99$29.99
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    Specifications

    BrandJabra
    Model2409-820-205
    ConnectionQD (Quick Disconnect)
    Wearing styleDuo
    MicrophoneNoise-cancelling boom
    ConditionCertified Renewed — Grade A
    Works with
    Desk phonePC / softphone

    Questions

    Frequently asked

    What does this headset connect to?
    It uses a Quick Disconnect (QD) connector and works with compatible desk phones. With the correct QD adapter (such as a QD-to-USB cable), it can also be used with a PC or softphone.
    Is it wired or wireless?
    It is a wired headset. The QD cable lets you quickly unplug from the connector to step away, but it is not a wireless or Bluetooth model.
    Does the microphone cancel background noise?
    Yes. It has a noise-cancelling boom microphone designed to reduce surrounding noise so your voice comes through clearly on calls.
    Is this a single or dual-ear headset?
    This is the Duo version, which covers both ears to help you concentrate in busy, open-plan offices and contact centres.
    What does 'Certified Renewed' mean and is it covered?
    Every headset is fully tested, cleaned, and restored to Grade A condition, with a new battery fitted where required. It is backed by our 1-year warranty.
    What's in the box?
    The headset ships with its standard QD cable. Depending on your phone or PC, you may need a compatible QD adapter, which is sold separately.