Sennheiser 509549

Overview

The Sennheiser 509549 is a wireless bodypack transmitter designed to provide clear and reliable audio transmission for professional stage performances and broadcast applications. Operating within the 558 to 608 MHz UHF frequency range, it offers access to 2000 selectable frequencies to minimize interference. With a transmission range of up to 330 feet and adjustable RF power output, it supports flexible setups in various venue sizes.

Key features

• Adjustable RF power output (10, 30, or 50 milliwatts) to balance battery life and signal strength based on your environment
• Locking 3.5mm TRS input that securely connects lavalier or headset microphones and instrument cables for versatile audio sources
• Infrared sync function enables quick and easy frequency alignment with compatible receivers, reducing setup time
• Backlit LCD screen displays key settings and battery status clearly, even in low-light conditions
• Programmable mute switch allows discreet control during live performances or broadcasts
• Durable metal housing built to withstand the rigors of frequent use and demanding professional environments
• Supports up to 8 hours of continuous operation using two AA batteries, with the option to use a rechargeable BA 2015 Accupack for convenience
• Seamless integration with Sennheiser evolution series systems ensures consistent wireless audio performance

Key specs

• Frequency range: 558 to 608 MHz (UHF)
• Selectable frequencies: 2000
• Transmission range: up to 330 feet
• RF power output: 10, 30, or 50 milliwatts
• Input connector: locking 3.5mm TRS
• Battery type: two AA batteries or BA 2015 Accupack rechargeable
• Battery life: up to 8 hours
• Housing: metal

Connectivity and compatibility

This transmitter pairs specifically with the EM 300-500 G4 receiver and is compatible with all Sennheiser evolution series systems. The locking 3.5mm TRS input supports a variety of microphones and instruments, making it adaptable for different professional audio setups. Its infrared sync feature simplifies frequency matching with compatible receivers, ensuring smooth integration into existing wireless systems.

Ideal uses and environments

The SK 500 G4 is well suited to musicians, presenters, and broadcasters who require dependable wireless audio in live performance venues, studios, or broadcast settings. Its robust metal housing and adjustable power output make it a strong choice for both small and large spaces where mobility and interference-free sound are essential. Users who need long battery life and quick setup will find this transmitter meets those demands effectively.

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.

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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.

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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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