Home Page Link


Poly EncorePro 520 Stereo Quick Disconnect Headsets, DA85 USB Adapter & Training Adapter w/Mute Training Bundle

Price: $413.90$285.37

13569 in stock

Purchasing for business

  • As an authorized reseller of this product, business discounted pricing is only revealed via email as we cannot show it to the general public.
  • Every business order includes unlimited lifetime support from our Headset Helpdesk, saving you time and money.

This field is for validation purposes and should be left unchanged.

One Training set: Poly EncorePro 520 Stereo Quick Disconnect Headsets, DA85 USB Quick Disconnect Adapter and Y Training Adapter with Mute.  All in one bundle to make it easier and more cost effective for you!

EncorePro 520 Stereo Noise Cancelling Quick Disconnect Headsets X 2

  • Quick Disconnect feature provides walkaway convenience for agents and trainers
  • Stereo style covers both ears to help block background noise
  • Adjustable headband and soft foam ear cushions for all-day comfort
  • Flexible noise-canceling boom allows optimal positioning for voice clarity
  • Visual and tactile positioning guides enable precise and quick microphone positioning
  • Wideband audio delivers richer, clearer conversations, while SoundGuard technology protects from noise spikes and listening fatigue, meeting OSHA/Noise at Work regulations
  • Designed for the rigors of call-intensive environments, minimizing operational disruptions and costly downtime
  • Laser-welded construction and metal joints provide unbeatable toughness and durability
  • Cable length from headset to Quick Disconnect 38 inches/3.16 feet
  • 2 year manufacture warranty

DA85 USB to QD Headset Adapter with Inline Controls, USB-A & USB-C X 1

  • Effortless USB plug and play installation
  • Built-in USB-A and USB-C connectors
  • At-your-fingertips interface allows you to bypass on-screen call control menus
  • Eliminate button-pushing mistakes with recessed buttons that are not accidently activated
  • Affordably joins enterprise-class headsets with softphones
  • Professional grade USB adapter for commercial use
  • Compact size takes up minimal desk space
  • Superior noise and echo cancellation
  • Poly Soundguard Digital featuring advanced acoustic limiting, including daily noise exposure, G616, and anti-startle functionality
  • DA85 cable measures 4 feet
  • Downloadable firmware updates and unique serial numbers create consistent management of devices
  • 2 year manufacture warranty
Training Adapter with Mute for Quick Disconnect Headsets X 1
  • Allows two people to hear both sides of the conversation (both people must be wearing a Poly headset with a quick disconnect)
  • The Y tail plugs into your existing Poly 10′ coil cord, the trainer plugs into the short end, and the trainee plugs into the long end
  • Red inline switch on the cord allows user to switch who speaks – one of the two users is always muted
  • Both users can always listen – but only one user can be heard at a time
  • Has a manual mute button
  • Includes a QD clamp to reinforce the connection where the Y cord connects to the cord
  • Genuine Poly accessory
BTP Model: ZZ-HW520DA85BDL
MFR Part: HW520DA85BDL

Additional information

Weight 1.24 lbs
Dimensions 12 × 12 × 10 in


There are no reviews yet.

Be the first to review “Poly EncorePro 520 Stereo Quick Disconnect Headsets, DA85 USB Adapter & Training Adapter w/Mute Training Bundle”

Your email address will not be published. Required fields are marked *

Our Unmatched, Value-added Service Saves You Time, Money and Hassles:

  • Experienced consultants help you choose exactly the products you need, preventing unnecessary purchases
  • Free user setup help and training
  • 100% satisfaction guaranteed
  • Our team is committed to answering every call live during business hours
  • Same-day response to emails
  • Same-day shipping
  • Full warranty facilitated by BTP


For customer service, sales inquiries, and technical support, contact us Monday“Friday, 8-5 Pacific Time. (After-hours messages and emails are promptly returned the following business day.)

Call: 800-457-4287 or 425-649-9262

Email: info@btpi.com

Quick ship, standard stock.

This item is normally in stock. Orders received Monday-Friday by 2:30 pm Pacific Time, ship the same day.

If this product is out of stock or on backorder from the manufacturer, a BTP Customer Service Representative will notify you by phone or email with an estimated ship date. If your order includes some in stock products, you may request a partial shipment of in stock item(s) with the out of stock item(s) to follow when available.

BTP does everything possible to eliminate delays and unnecessary expense associated with returns. At least two members of the BTP team will review your order for accuracy. If we have any questions or concerns about your order, such as two incompatible products, we will contact you right away.


“Your customer service has been excellent. I recommend that everyone work with BTP. I don’t get better customer service from anyone. Thank you.”Read more

Dwight B. (Helena, MT)