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    Poly

    Poly EncorePro HW520 Duo QD Headset (Renewed)

    Poly EncorePro HW520 Duo QD Headset (Renewed)

    Certified Renewed · 1-Year Warranty

    $25.26 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 Poly EncorePro HW520 Duo is a wired, dual-ear headset designed for professionals who spend the day on calls. It connects through a Quick Disconnect (QD) cable, making it a natural fit for compatible desk phones and, with a QD adapter, PC and softphone use. The Duo design covers both ears so you can stay focused in a busy office.

    Key features

    • Noise-cancelling boom microphone for clearer conversations in shared spaces
    • Quick Disconnect (QD) connector so you can step away without dropping the call
    • Dual-ear (Duo) wearing style for improved focus
    • Compatible with desk phones, plus PC and softphone via a QD adapter
    • Lightweight, comfortable build for all-day wear

    This EncorePro is Certified Renewed: thoroughly tested, professionally cleaned, and brought back to Grade A cosmetic condition, with a new battery installed where needed. Backed by our 1-year warranty, it delivers trusted Poly call quality at a refurbished price you can stand behind.

    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-18071359 · 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

    Poly EncorePro HW520 Du...Plantronics CS540 Earpi...Plantronics EncorePro H...Plantronics W720 Savi D...
    Connection QD (Quick Disconnect)DECT wireless (USB-A base / desk phone)Wired QD (needs bottom cable)DECT wireless (multi-device base: desk phone / PC / mobile)
    Wearing style DuoConvertibleMonoDuo / Stereo
    Microphone Noise-cancelling boomNoise-cancelling boomNoise-cancelling boomNoise-cancelling boom
    Price $25.26$36.99$12.29$79.95
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    Specifications

    BrandPoly
    Model89434-01
    ConnectionQD (Quick Disconnect)
    Wearing styleDuo
    MicrophoneNoise-cancelling boom
    ConditionCertified Renewed — Grade A
    Works with
    Desk phonePC / softphone

    Questions

    Frequently asked

    What can I plug this headset into?
    It has a Quick Disconnect (QD) connector for compatible desk phones. With the correct QD adapter, it also works with a PC or softphone.
    Is it wired or wireless?
    It is a wired headset that connects via a QD cable. It is not a wireless or Bluetooth model.
    Does it reduce background noise?
    Yes. The noise-cancelling boom microphone is designed to cut down on surrounding noise for clearer calls.
    Is this mono or dual-ear?
    This is the Duo (dual-ear) version, which covers both ears to help you concentrate in busy environments.
    What does 'Certified Renewed' cover?
    Each unit is fully tested, cleaned, and restored to Grade A condition, with a new battery where required, and is backed by our 1-year warranty.
    What comes in the box?
    It includes the headset with its standard QD cable. A QD adapter for PC or softphone use may be required depending on your setup and is sold separately.