Poly 8L544AA

Overview

The Poly 8L544AA is the MDA524 QD USB-A Headset Switch Processor, designed to simplify call management by allowing users to switch seamlessly between a desk phone and a computer without changing headsets. It features a compact design with dimensions of 1.3 inches in height, 3.3 inches in width, and 4.6 inches in depth, weighing just 4.94 ounces, making it easy to place on any desk. This device enhances call clarity with built-in noise and echo cancellation, ensuring conversations remain clear even in busy or noisy environments.

Key features

• Single-point control for answering, ending, muting, and adjusting volume on calls from both desk phones and computers
• Smart audio processor that actively removes background noise, suppresses echo, balances volume, and protects against sudden loud sounds
• USB-A connection for straightforward plug-and-play integration with computers
• Compatibility with standard four-pin Quick Disconnect headsets, including Poly EncorePro 500 and 700 series
• Dedicated buttons for easy call management without needing to switch devices or headsets
• Advanced safeguards such as Noise at Work compliance, G616 support, anti-startle protection, and transmit noise suppression to protect hearing and improve audio quality
• Compact and lightweight design that keeps workspaces uncluttered and allows for easy repositioning
• Two-year limited manufacturer warranty providing confidence in long-term reliability

Key specs

• Dimensions: 1.3 inches (H) x 3.3 inches (W) x 4.6 inches (D)
• Weight: 4.94 ounces
• Connection type: USB-A for computer integration
• Headset compatibility: Standard four-pin Quick Disconnect, Poly EncorePro 500 and 700 series
• Audio processing: Noise cancellation, echo suppression, volume balancing, anti-startle protection
• Warranty: Two-year limited manufacturer warranty

Connectivity and compatibility

This headset switch processor connects to your computer via a built-in USB-A cable, enabling quick and reliable integration with softphone applications. It also supports connection to traditional desk phones, allowing users to switch between platforms effortlessly. The device accepts most professional headsets with a four-pin Quick Disconnect, making it a versatile choice for various office setups.

Ideal uses and environments

The MDA524 is well suited to customer service representatives, technical support teams, and hybrid workers who need to manage calls across multiple devices without interruption. It performs reliably in open offices, busy contact centers, and home workspaces where background noise can interfere with communication. By reducing cable swaps and streamlining call control, it helps maintain productivity and focus throughout the workday.

Orders are processed within 2 business days, which includes verification, packing, and dispatch. Shipping costs are calculated at checkout based on destination, total weight, and selected speed. Free shipping applies to carts over $100 (excluding heavyweight items). All available options and final pricing are clearly shown before payment so you can choose the service that best fits your needs.

Deliveries are handled by major carriers such as USPS, UPS, and FedEx. Estimated delivery times are displayed at checkout and may vary depending on service level and location. Please note that these are estimates and can be affected by weather, holidays, or carrier volume. Once your order ships, you’ll receive a tracking number for real-time updates from pickup to final delivery.

Providing an accurate shipping address helps prevent delays, and changes may be limited once the order has been dispatched. P.O. boxes are supported only when permitted by the selected carrier. Packaging and handoff are optimized to protect items during transit, though oversized or high-weight products may require special handling. All shipping methods and any related constraints are clearly shown during checkout.

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Returns are accepted within 30 days of delivery. Items must be unused, in the same condition received, with tags, manuals, accessories, and original, unaltered packaging. Any item kept will be deducted from the refund. Start a return by sending us an email. Items sent back without approval may be refused or returned to the sender.

Some items are not returnable: opened TVs/combos/monitors 37″+, opened computers or software, electronic downloads, opened consumables (film, paper, bulbs, media, ink), custom or modified computers, special-order or “nonreturnable” items, submerged underwater gear, and opened educational media.

After inspection, refunds are issued to the original payment method; allow 5–7 business days for the credit to post. Shipping, handling, customs duties, and import taxes are nonrefundable. If an item is used, incomplete, or not in original condition, a 30% restocking fee may apply. Direct exchanges are not offered; purchase the replacement and return the original for a refund.

We act solely as a reseller. Any product warranty is provided and administered by the manufacturer, not by our store. That means eligibility, coverage, and outcomes are determined by the manufacturer’s policy for each brand and model. Before purchasing, we recommend reviewing the warranty terms on the manufacturer’s website or in the product documentation to confirm what is covered and for how long.

If you need warranty service, please file the claim directly with the manufacturer. They may require proof of purchase, the product serial number, original packaging, photos, or basic troubleshooting. Some brands ask you to register the product or obtain a case number before shipping it for repair or replacement. We don’t submit or approve claims, but we can point you to the correct support links and contact details.

Keep your invoice and packaging in a safe place, and report any functional issues to the manufacturer as soon as they appear. If you’re unsure whether a problem is covered, the manufacturer’s support team can confirm next steps and timelines. While we cannot intervene in decisions or outcomes, we’re happy to provide purchase documentation or guidance so you can move through the warranty process smoothly.

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