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Sennheiser 509385

EW-DX SK Digital Wireless Bodypack Transmitter with Locking 3.5mm Connector

Regular price $459.00

Highlights:

  • Digital UHF transmission ensures interference-free audio in busy environments
  • Locking 3.5 mm connector supports lavalier and headset microphones
  • Bluetooth 5.1 LE allows wireless pairing and control up to 120 feet
  • E-Ink display shows frequency and battery info even when powered off
  • Up to 12 hours battery life with rechargeable pack or AA batteries

Every order includes:

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

Description

Overview

The Sennheiser 509385 is a digital wireless bodypack transmitter designed to deliver dependable audio performance in environments such as conference rooms, theaters, houses of worship, and live stages. It features a robust metal housing that withstands daily use and connects seamlessly to Evolution Wireless Digital systems. With a dynamic range of 134 dB, it captures everything from soft whispers to loud passages without requiring manual gain adjustments, ensuring clear and consistent sound for presenters, vocalists, and instrumentalists alike.

Key features
  • Digital UHF transmission compatible with Evolution Wireless Digital receivers for interference-free audio.
  • Locking 3.5 mm connector supports a variety of lavalier, headset microphones, and instrument adapters for versatile use.
  • Bluetooth 5.1 LE enables wireless pairing and control from up to 120 feet, simplifying setup and management.
  • E-Ink display retains frequency and battery information even when powered off, allowing quick status checks before use.
  • Optional rechargeable battery pack provides up to 12 hours of continuous operation, with the flexibility to use standard AA batteries for quick replacements.
  • Durable metal housing designed to endure the rigors of professional daily use and touring.
  • Auto-scan feature automatically finds clear UHF channels in crowded RF environments, reducing interference and setup time.
Key specs
  • Dynamic range: 134 dB
  • Connector type: Locking 3.5 mm
  • Wireless standard: Digital UHF transmission
  • Bluetooth version: 5.1 LE
  • Operating range for Bluetooth pairing: up to 120 feet
  • Battery life: up to 12 hours with optional rechargeable battery pack
  • Housing material: Metal
Connectivity and compatibility

This transmitter integrates smoothly with Evolution Wireless Digital receivers, providing a reliable digital UHF connection that minimizes interference. The locking 3.5 mm connector accepts a wide range of microphones and instrument adapters, making it adaptable to various audio setups. Bluetooth 5.1 LE support allows remote pairing and control, which is especially useful in complex or busy environments.

Performance and reliability

With a wide dynamic range of 134 dB, the transmitter captures audio signals from very quiet to very loud without the need for manual gain adjustments, preserving natural sound quality. The metal housing protects the unit from physical damage during daily use, while the auto-scan feature ensures a clear channel is selected even in crowded RF conditions. The E-Ink display provides persistent visibility of key settings, reducing the chance of errors during setup.

Ideal uses and environments

The Sennheiser 509385 fits well in professional settings where clear, wireless audio is essential. It is a strong choice for corporate breakout rooms, hybrid classrooms requiring clear speech transmission, and live performance stages where freedom of movement is critical. Its flexible power options and durable design also make it suitable for rental houses and touring professionals who need dependable gear that adapts to different scenarios.

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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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