Poly EncorePro 520 with a QD connector — a mid-tier corded headset for contact centres. The stereo configuration covers both ears and weighs 74 g. Aircraft-grade aluminium joints and a flexible boom with a noise cancelling microphone.

QD connector, an adapter or cable is required

Stereo, covers both ears

Weight 74 g

30 mm driver

Aircraft-grade aluminium joints

Two-year manufacturer warranty

Poly EncorePro 500 ordering variants we offer
Order code	Model	Wearing	Connector	Certification
783Q2AA#ABB	510	monaural	QD	—
783Q4AA#ABB	510V, voice tube	monaural	QD	—
783P7AA#ABB	520 (this product)	stereo	QD	—
783P9AA#ABB	520V, voice tube	stereo	QD	—
783P3AA#ABB	530	over the ear, 22 g	QD	—
783P1AA#ABB	540	convertible	QD	—
783R0AA	515	monaural	USB-A	Skype for Business
783R1AA	515	monaural	USB-A	Microsoft Teams
783R3AA	525	stereo	USB-A	Zoom
783R2AA	525	stereo	USB-A	Microsoft Teams
783R4AA	545	convertible	USB-A	Skype for Business

The model number reads in two steps. The second digit gives the wearing style: 1 monaural, 2 stereo, 3 over the ear and 4 convertible. A trailing zero means a QD connector, a trailing five a USB-A connector. The letter V additionally means a voice tube instead of a conventional microphone.

Key features

Quick Disconnect connector for leaving the workstation with one click
Aircraft-grade aluminium joints, a build made for years of service
30 mm driver with a 150 Hz to 6.8 kHz bandwidth tuned for the voice
Flexible 135 mm boom with 290 degrees of rotation
Noise cancelling microphone, bandwidth 20 Hz to 16 kHz
Foam ear cushions, replaceable, under order code 85Q31AA
SoundGuard hearing protection, sound limited below 118 dBA

Description

The mid tier, where saving does not pay

The EncorePro 500 sits between the 300 and 700 ranges. Against the 300 it mainly adds build quality: aircraft-grade aluminium joints, a more refined hinge for the earpieces and a wider choice of wearing styles. In a contact centre, where the headset goes from the head to the desk and back twenty times a day, that tells on service life. It is also lighter, 74 g against 105 g on the 320.

Four wearing styles in one range

The 500 is the only one of the three that offers all four wearing styles. The 510 and 515 are monaural, the 520 and 525 stereo, the 530 is worn on the ear and weighs only 22 g, and the 540 and 545 are convertible, that is with a headband and an earloop in one box. This is the main reason the 500 range is deployed where agents pick what suits them.

What a voice tube is and when to want one

The models with the letter V, that is the 510V and 520V, have a voice tube instead of a conventional microphone. It is a hollow tube that carries the voice from the mouth to the microphone. It is clear, easy to clean and replaceable; we carry the spare under code 85Q39AA. It suits operations with hygiene requirements and places where headsets rotate between agents. The drawback is that the tube is more fragile and has to be replaced.

Strengths and limits

Strengths

Aircraft-grade aluminium joints, a longer service life than the 300 range
Four wearing styles in one range, including over the ear and convertible
Lighter than the 300 range, 74 g against 105 g in the stereo configuration
A QD break-away, the agent leaves the desk without taking the headset off

Limits and what to tell the customer

Without an adapter or a QD cable the headset is unusable. It must be ordered separately, according to what it plugs into.
Only the USB codes carry platform certifications.
The box holds the headset alone. No cable, no guide, no spare ear cushions.
The driver bandwidth is narrow, 150 Hz to 6.8 kHz. That is deliberate for voice intelligibility, but it is not for music.

⚑ atlantis note

The cable always belongs in the quote, or the customer will call

The most common complaint about QD headsets is not a fault but a missing cable. The customer opens the box and has nothing to plug into. So put an adapter or a cable into every quote that carries a QD code. Ask what it plugs into: a computer means the DA75 or DA85, a desk phone means a QD to plug cable chosen by brand, and both at once means an MDA switch.

Let the agents choose the wearing style

The 500 is the only range with all four wearing styles and that is worth using. On a larger deployment order a few units of each configuration to try. After eight hours the difference in comfort between wearing on the ear and on a headband is substantial and it varies from person to person. The convertible 540 settles the argument by letting the user choose.

Certifications on the USB codes are not aligned

The universal USB codes in the 500 range have three different certifications: Skype for Business on the 515, Zoom on the 525 and Skype for Business again on the 545. Skype for Business is a long-retired platform. If the customer requires certification, verify it for the specific code and expect HP's entry to be stale. The Microsoft Teams versions, that is 783R1AA and 783R2AA, carry Teams certification and a dedicated button.

Who it suits

Recommended deployment
Recommended use	a smart digital contact centre headset with aircraft-grade aluminium joints, a flexible noise cancelling boom and a choice of QD or USB connection
Position in the portfolio	corded contact centre headsets, EncorePro 500 range, the middle of the three
How it differs from the 300 range	a tougher build with aluminium joints, a lower weight and four wearing styles instead of two, plus voice tube variants

Suitable

Contact centres on shift work where headsets change users daily and have to last. Workplaces where agents pick their wearing style. Operations with hygiene requirements, where a voice tube fits.

Verify

What the headset plugs into and pick the adapter or cable accordingly. Which wearing style the agents want. Whether the customer requires platform certification, which only the USB codes carry. Whether a voice tube is wanted.

Consider another model

EncorePro 300 for a more affordable volume deployment, EncorePro 700 for the top tier, Blackwire 3200 for an ordinary office, Savi 7300 for a wireless contact centre.

The “Verify” and “Consider another model” cards come from the experience of the atlantis team.

What it connects and how

Computer

By a QD to USB adapter

The headset plugs into a DA75 or DA85 adapter, and that into a USB port. The adapter is not in the box and is ordered separately.

DA75

DA85

DA85-M for Teams

Desk phone

By a QD to plug cable

By phone brand, a QD to 3.5 mm or 2.5 mm plug cable, or an amplifier. Ordered separately as well.

we pick it by the phone

Computer and phone

By an MDA switch

The MDA100, MDA105 and MDA524 switches serve both and the agent moves between them with one button.

MDA100

MDA524

Communication platform certification applies only to the USB codes, where it additionally differs from model to model.

Connection and cable

Poly EncorePro 520 with QD connection
Item	Value	Note
Connector	QD, Quick Disconnect	an adapter or cable is required, not in the box
Cable length	785 mm	from the headset to the QD connector, the rest of the run is the cable or adapter
Inline controls	none on this version	only the USB codes have them
Platform certification	—	it applies only to the USB codes

Audio and microphone

Poly EncorePro 520 audio and microphone
Wearing	stereo, model 520, covers both ears
Weight	74 g
Speaker	30 mm driver, bandwidth 150 Hz to 6.8 kHz, tuned for the voice
Microphone	noise cancelling, bandwidth 20 Hz to 16 kHz
Microphone boom	flexible, length 135 mm, 290 degrees of rotation
Ear cushions	foam, replaceable
Build	aircraft-grade aluminium joints
Hearing protection	SoundGuard, sound limited below 118 dBA
Controls	none on the QD codes
Colour	black

What is in the box

In the box

Headset with a cable terminated in a QD connector

Not included

A QD to USB adapter or a QD to desk phone cable, without which the headset connects to nothing
Spare ear cushions, foam 85Q31AA or leatherette 85Q36AA
Travel case
Poly+ Partner service programme

Order it with the headset

DA85 USB to QD adapter786C7AA

The most common companion to a QD headset at a computer; the Microsoft Teams version is the DA85-M, 786C8AA.

MDA524 QD to USB-A switch8L544AA

For workplaces with a computer and a desk phone at the same time.

EncorePro HW510/520 foam ear cushions85Q31AA

Two pieces, a consumable on headsets worn all shift. The leatherette ones are 85Q36AA.

EncorePro HW510V/520V voice tube85Q39AA

A spare tube for the V models, a consumable.

Variants and products in the range

Poly corded contact centre headsets we offer
Range	Tier	What defines it	Purpose
EncorePro 300	entry	light build, QD and USB	volume deployment in a call centre
EncorePro 500 ◂ this product	mid	aluminium joints, four wearing styles	shift work with an emphasis on service life
EncorePro 700	top	the top contact centre tier	key workplaces
Blackwire 3200 and 3300	office	USB, controls on the cable	an ordinary office, not a call centre
Savi 7300 Office	wireless	DECT with a desk base	a call centre without a cable

What to verify before ordering and deploying

Cable or adapter: required with a QD code, without it the customer cannot connect the headset
Wearing style: monaural, stereo, over the ear or convertible, let the agents try them
Certification: Only for the USB codes and it differs from model to model
Voice tube: the 510V and 520V, suited to operations with hygiene requirements
Consumables: ear cushions differ between the 500, the 530/540 and the 700, the order codes are not interchangeable
Volume: on a larger deployment agree the supply of consumables upfront

The atlantis team helps with every point. From picking the adapter by phone, through lending samples of the wearing styles, to supplying consumables.

Management and services

Poly Lens: on the USB codes inventory, bulk settings and firmware updates; the QD codes are managed through the attached adapter or switch
Poly+ Partner: local support from an experienced certified team in Czech, by phone, chat, web and video call, priority device replacement in which the manufacturer ships the replacement part the next business day and pays the shipping, all under the terms of the programme and for its whole validity, so care can continue even after the warranty ends
atlantis deployment: designing the headset plus adapter combination for the workplace, lending samples of the wearing styles, bulk configuration and training the agents

Warranty

Standard two-year limited HP Poly warranty. Extended support with expedited replacement is provided by the Poly+ Partner programme.

Frequently asked questions

Can I plug the headset straight into a computer?

No. This code has a QD connector, that is a break-away, not USB. It needs a DA75, DA85 or DA85-M adapter, or an MDA switch. If you want to plug in directly, order a USB code, that is the 515, 525 or 545.

What wearing styles does the range offer?

All four. The 510 and 515 are monaural, the 520 and 525 stereo, the 530 is worn on the ear and weighs only 22 g, and the 540 and 545 are convertible, that is with a headband and an earloop in one box.

What is the voice tube on the 510V and 520V?

It is a hollow tube that carries the voice from the mouth to the microphone. It is clear, easy to clean and replaceable. It suits operations with hygiene requirements. We carry the spare tube under code 85Q39AA.

Is the headset certified for Microsoft Teams?

Not this code, platform certification applies only to the USB codes. Microsoft Teams certification and a dedicated button belong to codes 783R1AA, that is the 515, and 783R2AA, that is the 525.

How does it differ from the 300 range?

It has aircraft-grade aluminium joints and is tougher, it is lighter at 74 g against 105 g in the stereo configuration, and it offers four wearing styles instead of two. It also has voice tube variants, which the 300 range does not.

Manufacturer: Poly (Plantronics)
Weight: 0.09 kg
Headset type: Cable
A headset designed for: Desk phone, Mobile phone, Computer, Tablet
Connector type: QD
Structural design: Binaural (for both ears)
Way of wearing: Head clip
Speaker frequency range (Hz) - minimum: 150
Speaker frequency range (Hz) - maximum: 6800
Microphone type: Directional microphone (Noise Canceling)
Microphone boom length: Long
Microphone arm mobility: Rotates 270°
Material of the earrings: Leatherette earpad

Not sure what to choose?

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