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Sennheiser 509413

EW-DX SKM-S Digital Wireless Handheld Transmitter with Mute Switch (R1-9: 520 to 607 MHz)

Regular price $535.00

Highlights:

  • Digital wireless tech delivers clear audio with low latency
  • Programmable mute switch offers quick silent control on stage
  • Bluetooth enables fast pairing and remote setup via app
  • Durable metal housing built for frequent transport and use
  • E-Ink display shows key info even when powered off

Every order includes:

  • Fast and secure shipping
  • Free 30-days returns
  • Manufacturer warranty
  • Lifetime customer support

Description

Overview

The Sennheiser 509413 is a digital wireless handheld transmitter designed for use with Evolution Wireless Digital systems, providing performers and presenters with reliable, high-quality audio transmission. Operating in the R1-9 UHF band from 520 to 607 MHz, it offers a strong and stable signal suitable for various professional environments. The transmitter supports a wide range of Sennheiser and Neumann microphone capsules, allowing users to customize their sound for different applications, from live music to spoken word.

Its metal housing ensures durability for frequent transport and stage use, while digital transmission maintains clear audio over distances up to 328 feet. Bluetooth connectivity simplifies pairing and enables remote configuration through the Sennheiser app, making setup and adjustments more efficient. The device also features a programmable mute switch for quick, silent control and an E-Ink display that shows key information even when powered off.

Key features
  • Digital UHF wireless technology delivers clear audio with low latency, ideal for live performances and presentations.
  • Programmable mute switch allows instant on-mic control without needing to access the receiver or mixing desk.
  • Compatibility with a full range of Sennheiser and Neumann microphone capsules lets you tailor the sound to your specific needs.
  • Bluetooth support enables fast pairing and remote adjustments via the Sennheiser app, streamlining setup and sound-check processes.
  • Durable metal housing withstands the rigors of daily transport, rehearsals, and stage use.
  • E-Ink display provides essential information such as frequency, battery status, and mute state, visible even when the unit is off.
  • Charging contacts allow convenient docking in the CHG 70N charger, supporting quick turnaround between sets.
  • Optional BA 70 lithium-ion battery pack offers up to 12 hours of continuous operation, reducing downtime during events.
Key specs
  • Frequency range: 520 to 607 MHz (R1-9 band)
  • Transmission range: up to 328 feet (100 meters)
  • Battery life: up to 12 hours with optional BA 70 lithium-ion pack
  • Housing: metal construction for durability
  • Display: E-Ink screen showing frequency, battery, and mute status
  • Connectivity: Bluetooth for pairing and remote control
  • Charging: built-in contacts compatible with CHG 70N dock
Connectivity and compatibility

This transmitter integrates seamlessly with Evolution Wireless Digital receivers, ensuring stable and interference-free audio transmission. Its Bluetooth capability allows quick pairing with compatible receivers and remote configuration through the Sennheiser app, which is especially useful for sound engineers managing multiple devices. The unit supports all Sennheiser and Neumann microphone capsules, giving users flexibility to select the best microphone for their voice or instrument.

Performance and reliability

Designed for professional use, the transmitter maintains a clear digital audio signal over long distances, making it suitable for large venues such as concert halls, conference centers, and lecture theaters. The metal housing protects the device from everyday wear and tear, while the programmable mute switch offers discreet control during performances or presentations. The E-Ink display ensures you can verify settings quickly, even before powering on, reducing setup errors and delays.

Ideal uses and environments

This transmitter is well suited to musicians, speakers, and presenters who require dependable wireless audio with flexible microphone options. It works effectively in live music venues, corporate events, educational settings, and houses of worship. The long battery life and fast charging capabilities support extended use without interruption, while Bluetooth remote control helps sound teams manage multiple units efficiently.

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Shipping and delivery

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 and refunds

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.

Product warranty

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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