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Sennheiser 509786

Pro Wireless Handheld Microphone Base Set

Sale price $699.00 Regular price $779.00

Highlights:

  • Supports up to 32 channels to avoid frequency interference in busy venues
  • Transmission range reaches 100 meters for wide coverage in large spaces
  • Three RF power levels balance battery life and signal distance
  • Network port enables remote monitoring and control via software
  • Handheld transmitter works with various capsules for custom sound

Every order includes:

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

Description

Overview

The Sennheiser 509786 is a wireless handheld microphone base set designed to deliver reliable speech capture in environments such as conference rooms, lecture halls, houses of worship, and event spaces. Built on the G4 300 Series platform, it offers an 88 MHz tuning range that supports up to 32 simultaneous channels, ensuring clear audio without frequency interference. The system includes a rackmount receiver and a handheld transmitter, providing a flexible and professional audio solution for presenters and technical staff.

Key features
  • Wide 88 MHz bandwidth allows deployment of up to 32 channels, reducing frequency congestion in busy RF environments
  • Transmission range of up to 100 meters (330 feet) in open space ensures stable audio coverage across large venues
  • Three selectable RF power levels (10, 30, or 50 mW) enable balancing between battery life and coverage distance
  • Integrated network port supports remote monitoring and control via Sennheiser Control Cockpit software, simplifying management for IT and AV teams
  • Handheld transmitter accepts a variety of Sennheiser microphone capsules, allowing customization of sound to suit different voices and room acoustics
  • Quick installation with rackmount kit and included power and antenna accessories streamlines setup in professional environments
Key specs
  • Platform: G4 300 Series
  • Tuning bandwidth: 88 MHz
  • Maximum simultaneous channels: 32
  • Transmission range: up to 100 meters (330 feet) in open space
  • RF power settings: 10 mW, 30 mW, 50 mW
  • Receiver model: EM 300-500 rackmount
  • Transmitter model: SKM 300 G4-S handheld
Connectivity and compatibility

The system’s EM 300-500 receiver includes a network port that connects to a standard network switch, enabling remote monitoring and control through Sennheiser Control Cockpit software. This feature is particularly useful for managing multiple units across different rooms or larger campuses. The handheld transmitter is compatible with a wide range of Sennheiser microphone capsules, sold separately, allowing users to tailor the microphone’s sound profile to their specific needs.

Installation and setup

Setting up the 509786 is straightforward and efficient. The included rackmount kit allows the receiver to be securely installed in standard equipment racks. Once connected to power and network, the system can be monitored remotely, providing real-time information on battery status, RF signal strength, audio levels, and firmware updates. This reduces the need for on-site adjustments and helps maintain consistent audio quality during events.

Ideal uses and environments

This wireless microphone set is well suited to professional settings where clear and dependable speech transmission is critical. It works well in corporate boardrooms for regular meetings, educational institutions for daily lectures, and houses of worship or event venues requiring flexible channel management and long-range coverage. The system’s ability to handle multiple channels and remote monitoring makes it a strong choice for AV teams managing complex setups or rental inventories that must adapt to various locations.

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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.

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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 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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