Sennheiser 509777

Overview

The Sennheiser 509777 is a wireless handheld microphone system designed to deliver clear and reliable vocal performance in a variety of professional settings. Featuring an MME 865 condenser capsule with a supercardioid pickup pattern, it focuses on capturing voice with studio-quality clarity while minimizing background noise. Operating within an 88 MHz UHF bandwidth and offering 3520 selectable frequencies, this system ensures stable and interference-free audio transmission over distances up to approximately 330 feet.

Key features

• Supercardioid condenser capsule that isolates the speaker’s voice and reduces ambient noise for clear sound reproduction
• True-diversity receiver technology that maintains a stable wireless connection and minimizes dropouts in crowded RF environments
• Wide tuning range with 3520 selectable frequencies to avoid interference and support multiple simultaneous channels
• Ethernet port on the receiver enabling remote monitoring and management through Sennheiser Control Cockpit or Wireless Systems Manager software
• Noiseless mute switch on the handheld transmitter for discreet muting without distracting clicks or pops
• Lightweight aluminum housing that balances durability with comfort for extended use
• Battery life of up to eight hours on two AA batteries, suitable for long events without interruption
• Backward compatibility with Sennheiser G1, G2, and G3 series components, allowing seamless integration with existing setups

Key specs

• Frequency range: 88 MHz UHF bandwidth
• Selectable frequencies: 3520
• Pickup pattern: Supercardioid
• Transmission range: Approximately 330 feet
• Power source: Two AA batteries
• Battery life: Up to 8 hours
• Receiver connectivity: Ethernet port for remote control
• Compatibility: Sennheiser G1, G2, G3, and G4 series

Connectivity and compatibility

The system’s Ethernet connectivity allows technicians to monitor and control multiple channels remotely, which is especially useful in complex audio setups such as conference centers or multi-room venues. Its compatibility with earlier Sennheiser wireless series makes it a practical upgrade for users who want to expand or modernize their existing equipment without replacing everything.

Ideal uses and environments

This microphone system is well suited for professional speakers, educators, and worship leaders who need dependable wireless audio with clear vocal presence. It performs reliably in large lecture halls, conference rooms, houses of worship, and event stages where freedom of movement and consistent sound quality are essential. The long battery life and robust signal range support full-day use without interruptions, making it a strong choice for demanding live applications.

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 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.

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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