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Sennheiser 509780

SKM 300 G4-S Wireless Handheld Transmitter with No Mic Capsule (AW+: 470 to 558 MHz)

Regular price $369.00

Highlights:

  • Aluminum housing offers durability with lightweight comfort for long use
  • Up to 8 hours of battery life powered by two AA batteries
  • Wide 88 MHz tuning range with 3520 selectable frequencies
  • Transmission range up to 330 feet for freedom of movement
  • Interchangeable capsules for tailored sound and easy upgrades

Every order includes:

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

Description

Overview

The Sennheiser 509780 is the SKM 300 G4-S handheld wireless transmitter designed for professional audio applications where flexibility and reliability are essential. It operates within an 88 MHz tuning range and offers 3520 selectable frequencies, ensuring clear transmission even in crowded RF environments. Powered by two AA batteries, it delivers up to eight hours of continuous use and supports a transmission range of up to 330 feet, making it suitable for large venues and dynamic performances.

Key features
  • Aluminum housing that balances durability with lightweight comfort for extended use on stage or in the field
  • Wide tuning range with thousands of selectable frequencies to avoid interference and maintain signal clarity
  • Long transmission distance allowing performers and speakers to move freely without signal dropouts
  • Backlit LCD screen providing clear visibility of frequency, battery life, and mute status for quick monitoring
  • Mute switch with a lock function to prevent accidental muting during critical moments
  • Interchangeable capsule design compatible with the e 865 condenser microphone head and other Sennheiser capsules for tailored sound
  • Seamless compatibility with evolution wireless G4 receivers and backward compatibility with earlier Evolution systems for easy integration
Key specs
  • Tuning range: 88 MHz
  • Selectable frequencies: 3520
  • Transmission range: up to 330 feet (line of sight)
  • Power source: two AA batteries
  • Battery life: up to 8 hours
  • Housing material: aluminum
  • Frequency band: 470 to 558 MHz (AW+)
Connectivity and compatibility

This transmitter is designed to work seamlessly with the evolution wireless G4 receiver series, providing a reliable wireless link for professional audio setups. Its backward compatibility with earlier Evolution models allows users to upgrade their systems without replacing all components. The interchangeable capsule system lets users select from a range of Sennheiser microphone heads, including the popular e 865 condenser, to match specific vocal or instrument needs.

Ideal uses and environments

The SKM 300 G4-S fits well in live performance settings, corporate events, houses of worship, and educational environments where dependable wireless audio is critical. Its robust build and long battery life make it a strong choice for touring musicians and rental companies that require gear capable of withstanding frequent use. The wide frequency range and multiple selectable channels also make it suitable for venues with complex RF conditions or multiple simultaneous wireless systems.

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Shipping and delivery

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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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