Sennheiser 508721

Overview

The Sennheiser 508721 is a digital wireless lavalier microphone set designed to deliver clear and reliable sound for presenters and performers. It features the ME 4 cardioid clip-on microphone paired with a rugged metal bodypack transmitter and a half-rack receiver. Operating in the UHF band, this system offers up to 90 channels and 2,240 selectable frequencies, ensuring stable performance even in environments crowded with wireless devices. With a 134 dB input dynamic range, it captures both quiet and loud speech without the need for manual gain adjustments.

Key features

• Digital UHF transmission provides extended range and consistent signal quality for professional use.
• ME 4 cardioid microphone focuses on the speaker’s voice while minimizing ambient noise, enhancing speech intelligibility.
• EW-D Smart Assist App uses Bluetooth Low Energy to simplify setup by scanning frequencies, pairing devices, and monitoring signal strength from a smartphone or tablet.
• Wide input dynamic range allows seamless handling of varying vocal volumes without distortion or manual gain changes.
• Supports up to 90 channels with 2,240 selectable frequencies, making it suitable for busy RF environments like conferences and live events.
• Flexible power options include standard AA batteries for quick use or an optional lithium-ion pack offering up to 12 hours of continuous operation.
• Includes all necessary components such as bodypack transmitter, half-rack receiver, power supply, rackmount hardware, and connection cables for fast setup.

Key specs

• Transmission type: Digital UHF
• Microphone: ME 4 cardioid clip-on
• Channels: Up to 90
• Selectable frequencies: 2,240
• Input dynamic range: 134 dB
• Power options: AA batteries or optional lithium-ion pack
• Battery life (lithium-ion): Up to 12 hours
• Receiver type: Half-rack

Connectivity and compatibility

This microphone set integrates easily into professional audio setups with its half-rack receiver, which fits standard rack units for streamlined installation. The bodypack transmitter connects directly to the ME 4 lavalier mic, allowing presenters to move freely without cables. Bluetooth Low Energy connectivity enables wireless control and monitoring through the EW-D Smart Assist App, compatible with most smartphones and tablets.

Ideal uses and environments

The Sennheiser 508721 excels in settings where clear speech and mobility are essential. It works well in lecture halls, corporate boardrooms, houses of worship, and on-camera productions. Its ability to handle multiple channels and frequencies makes it a strong choice for events with many wireless devices, such as conferences and live performances. The microphone’s noise rejection and dynamic range ensure that voices remain clear and natural, even in challenging acoustic environments.

What’s included

• ME 4 cardioid clip-on microphone
• Rugged metal bodypack transmitter
• Half-rack receiver
• Power supply
• Rackmount hardware
• Connection cables

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, and include all tags, manuals, accessories, and original, unaltered packaging. To start a return, please email us for approval. Items sent back without approval may be refused or returned to the sender. If any item is kept, its value will be deducted from the refund.

Non-returnable items include opened TVs, combos, or monitors 37″ or larger, 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. Please allow 5–7 business days for the credit to post. Shipping and handling are nonrefundable. If an item is used, incomplete, or not in its original condition, a 30% restocking fee may apply. Direct exchanges are not offered. To exchange an item, please purchase the replacement separately and return the original for a refund.

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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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