Poly EncorePro 520 QD Stereo Noise Cancelling Headset
PRODUCT DESCRIPTION
Poly EncorePro 520 QD Stereo Noise-Cancelling Headset (783P6AA) - Local Warranty
Poly EncorePro 520 Quick Disconnect Contact-Centre Headset
The Poly EncorePro 520 is the dual-ear version of the EncorePro 510, and the one most Singapore contact centres pick when the floor is open-plan. Covering both ears cuts the amount of neighbouring conversation an agent has to filter out mentally. HP specifies the same noise-cancelling microphone, 30 mm speakers and 78.5 cm Quick Disconnect cable as the 510, at 74 g.
Noise-Cancelling Microphone and Wideband Audio
HP specifies a noise-cancelling microphone for this model, with a published microphone bandwidth of 20 Hz to 16 kHz and a speaker bandwidth of 150 Hz to 6.8 kHz. The boom measures 135 mm, rotates 290°, so it can be positioned consistently from agent to agent. Noise cancellation matters most on an open contact-centre floor, where the microphone has to pick the agent's voice out of a dozen neighbouring conversations.
Hearing Protection for Full-Shift Calling
HP states that Poly SoundGuard “protects against Acoustic Shock by limiting sounds to below 118dBA”. For teams on the phone for a full shift, acoustic limiting is not a luxury feature — it is the control that stops a sudden line fault or feedback squeal from causing injury, and it is part of why contact centres standardise on purpose-built headsets rather than consumer ones.
Quick Disconnect: What It Does, and What You Still Need to Buy
The Quick Disconnect plug lets an agent unclip the headset from the cable and walk away from the desk without unseating the headset or dropping the call state, then reconnect instantly. It also means one headset can move between a desk phone and a PC. Because QD is not a USB or phone connector, this headset cannot be plugged into a computer or a phone on its own — it needs a Poly QD-to-USB adapter (DA75, DA85 or the Teams-certified DA85-M) or a QD-to-desk-phone cable such as the Poly HIS cable. These are ordered separately; SourceIT can quote the right one against your phone or softphone platform.
Buying the Poly EncorePro 520 in Singapore
SourceIT supplies the Poly EncorePro 520 to Singapore businesses with local warranty and a GST invoice, and can quote volume pricing for contact-centre rollouts alongside the matching QD adapters. Talk to us if you are standardising a floor and need the headset, the adapter and the desk-phone cabling costed as one line.
Poly EncorePro 520 Datasheet — Technical Specifications
Every figure in the tables below is taken from HP’s published product specification for this model. Where HP does not publish a value for this exact part number, we leave the row out rather than estimate it from a sibling model.
General
| Model | Poly EncorePro 520 |
| HP product name | Poly EncorePro 520 Binaural Headset +Quick Disconnect |
| Part Number | 89434-01 (Poly) / 783P6AA (HP SKU) |
| Regional variant SKU | 783P7AA — HP publishes the same headset under this SKU in other regions. Builds can differ (TAA compliance, and in some cases box contents), so confirm the part number against your tender before ordering. |
| GTIN | 017229144712 |
| Product type | Corded contact-centre headset, Poly Quick Disconnect (QD) |
| Wearing style | On-ear, binaural / stereo (both ears), over-the-head |
| Colour | Black |
| Warranty | Local Warranty (Singapore) |
Audio
| Microphone type | Noise-cancelling |
| Microphone bandwidth | 20 Hz to 16 kHz |
| Speaker bandwidth | 150 Hz to 6.8 kHz |
| Microphone sensitivity | -40 ±3 dB |
| Signal-to-noise ratio | >50 dB |
| Speaker size | 30 mm |
| Boom microphone | 135 mm, rotates 290° |
| Hearing protection | SoundGuard — limits sound to below 118 dBA |
Connectivity
| Connection | Poly Quick Disconnect (QD) |
| Adapter required | Yes — a QD-to-USB adapter or QD-to-desk-phone cable is required and is not included |
| Cable length | 78.5 cm |
| Supported operating systems | Windows 11, Windows 10, macOS |
Design & Power
| Weight | 74 g |
| Dimensions | 11.1 × 14.9 × 6.7 cm (W × D × H) |
| Ear cushion material | Foam |
| Power | Drawn from the connected QD adapter or desk phone — no battery, no separate power supply |
Compatibility & Software Support
Operating systems and platforms
HP lists Windows 11, Windows 10 and macOS as the supported operating systems, and describes the headset as “compatible with PCs via QD (Quick-Disconnect)”. In practice the headset itself is an analog audio device — what the computer or phone actually sees is the Poly QD adapter you connect it through, so softphone and platform compatibility follows the adapter, not the headset.
Desk phones and softphones
For a desk phone, a Poly QD-to-phone adapter cable such as the Poly HIS cable (783S3AA) connects the headset to the phone’s headset port. For a PC or Mac softphone, a Poly DA-series USB adapter presents the headset to the operating system as a standard USB audio device, which is how it works with Microsoft Teams, Zoom, Webex, Genesys, Avaya and similar platforms.
Microsoft Teams
HP does not publish a Microsoft Teams certification for this headset itself. Certification in this family sits with the adapter: the Poly DA85-M (786C8AA) is the Teams-certified USB adapter, and HP’s DA Series guide advises that “for full Teams compatibility, connect to an EncorePro HW510 or HW520 headset”. If Teams certification is a procurement requirement, ask us to quote the DA85-M with the headset — or look at the natively certified EncorePro 515-M and 525-M USB models instead.
Management
An analog QD headset has no firmware of its own. Where a Poly DA-series USB adapter is used, that adapter is the manageable device and reports through Poly’s management tooling.
Package Contents & EncorePro 500 Series Ordering Information
In the box
- Poly EncorePro 520 headset
No adapter, amplifier or bottom cable is included. HP lists the box contents for this part number as the EncorePro 520 headset — nothing more. Budget for a QD adapter alongside every headset.
Poly EncorePro QD Range — Ordering Information
| Poly EncorePro 510 QD Mono, Noise-Cancelling | 89433-01 / 783Q1AA |
| Poly EncorePro 510V QD Mono, Voice Tube | 89435-01 / 783Q3AA |
| Poly EncorePro 520 QD Stereo, Noise-Cancelling (this listing) | 89434-01 / 783P6AA |
| Poly EncorePro 520V QD Stereo, Voice Tube | 89436-01 / 783P8AA |
| Poly EncorePro 540 QD Convertible, Noise-Cancelling | 88828-01 / 783P0AA |
| Poly EncorePro HW710 QD Mono, Noise-Cancelling | 78712-101 / 805H7AA |
| Poly EncorePro HW720 QD Stereo, Noise-Cancelling | 78714-101 / 805H6AA |
Required QD Adapters and Cables
These are the Poly adapters that make a QD headset usable. They are supplied to order — contact SourceIT for current pricing and lead time.
| Poly DA75 USB-to-QD digital adapter USB-A and USB-C connectors on the same cable. Adds SoundGuard DIGITAL acoustic limiting. |
786C6AA |
| Poly DA85 USB-to-QD digital adapter USB-A and USB-C on the same cable, with intelligent headset recognition and inline mute. |
786C7AA |
| Poly DA85-M USB-to-QD digital adapter Microsoft Teams certified. HP’s DA Series guide states that for full Teams compatibility it should be paired with an EncorePro HW510 or HW520 headset. |
786C8AA |
| Poly HIS adapter cable Connects a QD headset to the headset port of a compatible desk phone. HP lists the EncorePro HW710 and 720 among its compatible headsets. |
783S3AA |
| Poly U10P adapter cable QD-to-desk-phone adapter cable for supported phone models. |
784Q5AA |
USB Alternatives in the Same Family
If you would rather not buy a separate adapter, the USB EncorePro models plug straight into a computer:
| Poly EncorePro 515 USB Mono (USB-A + USB-C) | 218271-01 / 783R0AA |
| Poly EncorePro 515-M USB Mono, Microsoft Teams | 218272-01 / 783R1AA |
| Poly EncorePro 525 USB Stereo (USB-A + USB-C) | 218274-01 / 783R3AA |
| Poly EncorePro 525-M USB Stereo, Microsoft Teams | 218275-01 / 783R2AA |
| Poly EncorePro 545 USB Convertible (USB-A + USB-C) | 218277-01 / 783R4AA |
| Poly EncorePro 715 USB Mono (USB-A) | 203476-01 / 783N5AA |
| Poly EncorePro 725 USB Stereo (USB-A) | 203478-01 / 783M6AA |
Datasheet & Downloads
- HP product specifications — Poly EncorePro 520 Binaural Headset +Quick Disconnect (full HP specification table for this model)
- HP product page — Poly EncorePro 520 Binaural Headset +Quick Disconnect
- HP Poly EncorePro 500 Series — Singapore
- HP Knowledge Base — EncorePro 500 Series product information
- HP Poly DA Series adapter user guide (PDF) — covers the QD adapters this headset requires
HP publishes this model under more than one part number across regions. This listing is the 783P6AA build; HP’s specification pages above are published under HP SKU 783P7AA for the same headset. If your tender specifies TAA compliance, confirm the part number with us before ordering.
Frequently Asked Questions — Poly EncorePro 520
Can I plug the Poly EncorePro 520 straight into my laptop?
No. It ends in a Poly Quick Disconnect plug, not USB or 3.5 mm. You need a Poly QD-to-USB adapter — the DA75 (786C6AA), DA85 (786C7AA) or the Microsoft Teams certified DA85-M (786C8AA). For a desk phone you need a QD-to-phone cable such as the Poly HIS cable (783S3AA) instead. None of these is included in the box.
What is the difference between the EncorePro 520 and the EncorePro 520V?
The headset is the same; the microphone is not. This listing is the noise-cancelling version, and the Poly EncorePro 520V is the voice-tube version. A noise-cancelling boom microphone actively rejects surrounding room noise and is the right choice for a busy open floor. A voice tube is lighter, detachable and cheap to replace, and works well in a quiet office. Pick by how loud the room is.
Should I choose dual-ear or single-ear?
Dual-ear (binaural), as here, covers both ears and helps agents focus on a busy open-plan floor. Single-ear (monaural) leaves one ear free so agents stay aware of the room and can talk to a supervisor without removing the headset. The single-ear equivalent of this model is the Poly EncorePro 510.
How does the EncorePro 500 range compare with the 700 range?
HP positions the 700 range above the 500. The 700 models are built from premium nylon composite materials with a reinforced headband and an extendable boom, use artificial-leather ear cushions, and HP publishes a microphone bandwidth reaching down to 100 Hz for them. The 500 models use foam cushions and are the value tier. Both connect the same way, over Quick Disconnect. Compare the EncorePro 510, 520, HW710 and HW720 side by side.
Is this headset certified for Microsoft Teams?
HP does not publish a Teams certification for this headset on its own. In this family the certification belongs to the adapter — the Poly DA85-M (786C8AA) is the Teams-certified USB adapter. If you need a natively certified device with no adapter, look at the EncorePro 515-M or EncorePro 525-M USB models.
Does it need power or a battery?
No. It is a passive corded headset. It draws what it needs from the QD adapter or desk phone it is connected to, so there is no battery to charge and nothing to replace at end of shift.
Does the Poly EncorePro 520 come with a Singapore warranty?
Yes. Every Poly EncorePro 520 sold by SourceIT comes with local Singapore warranty and a GST invoice.
