Poly – HW520 – Encore Pro STEREO Wideband Headset (Noise Cancelling + QD)

Poly EncorePro HW520 (also known as EncorePro 520):

🎧 Overview

The Poly EncorePro HW520 is a wired, dual-ear (binaural), over-the-head headset with a flexible noise‑canceling boom microphone and Quick Disconnect (QD) interface—designed for heavy phone-use environments like call centers and busy offices.

🔑 Key Features

• Lightweight & robust – Weighs only ~74 g with laser-welded metal joints for long durability

• Noise-canceling boom mic – Reduces background noise, with flexible 280–290° rotation and tactile positioning cues

• Wideband audio – Delivers clear, natural sound quality up to 6.8 kHz for speech clarity

• Sound protection – SoundGuard limits peak volumes over 118 dBA and includes anti-startle protection below 102 dB SPL

• Quick Disconnect (QD) – Enables fast unplugging from desk phones or adapters while staying on the headset

• Comfort-oriented design – Soft foam cushions, adjustable headband with 6-point adjustment for all-day comfort

• 2‑year warranty – Ensures long-term support for enterprise usage

⚙️ Tech Specs

• Weight: ~74 g (2.6 oz)

• Headset style: Supra-aural, binaural, over‑the‑head

• Connectivity: QD; requires compatible cable or amplifier (e.g., DA80, M22)

• Microphone frequency: 20 Hz–10 kHz (wideband support)

• Speaker frequency: 20 Hz–6.8 kHz, optimized for voice

• Boom rotation: ~290° for ideal positioning

• Cable length (QD models): ~785 mm / 30.9″

• Certifications: Compatible with desk phones and USB using adapters like DA80/DA85; hearing‑aid compatible (HAC)

👍 Pros & ⚠️ Cons

✅ Advantages:

• Superb comfort and light weight for long shifts

• Strong mic suppression in noisy settings

• Durable build and reliable QD system

• Excellent value under $100 with 2‑year warranty

⚠️ Considerations:

• Not plug-and-play USB — needs adapter or amplifier for PC use

• Foam cushions may require replacement for hygiene/comfort over time

• No inline controls—volume/mute managed via external system

🛠️ Typical Use Cases

• Call centers and support teams needing clear audio and comfort

• Busy offices where QD lets agents step away briefly

• Unified communications setups using Poly amplifiers or USB adapters

• Users needing hearing protection and longterm reliability