Sennheiser EW 300 G4-865-S Wireless Handheld Microphone System

The Sennheiser 509777 is a wireless handheld microphone system built for speakers who need their words to cut through with confidence, whether they are addressing an executive board, guiding students in a lecture hall, or leading worship in a large sanctuary. It ships with a handheld transmitter that houses the MME 865 capsule, a condenser element with a supercardioid pickup pattern. This capsule concentrates on the voice in front of it and reduces surrounding noise, so every syllable reaches the audience with the clarity of a studio recording.

Operating in the UHF spectrum, the system offers an 88 MHz tuning window and 3520 selectable frequencies. That range pairs with true-diversity reception to keep dropouts and interference at bay, even in venues crowded with wireless devices. A maximum transmission distance of roughly 330 ft gives presenters the freedom to move across wide stages or through large training rooms without losing signal integrity.

Setup and control feel straightforward. An Ethernet port links the receiver to Sennheiser Control Cockpit or Wireless Systems Manager software, allowing technicians to monitor multiple channels from a laptop or tablet. On the microphone itself, a noiseless mute switch lets the user step aside for private conversations without distracting pops or clicks.

The aluminum housing keeps weight low for long events, and the system runs for up to eight hours on a pair of AA batteries, so a full conference day or worship service can pass without a battery swap. Backward compatibility with G1, G2, and G3 components makes the 509777 a sensible upgrade for organizations that already rely on earlier Sennheiser gear.

Use it in a conference center where several breakout sessions run simultaneously, on a university campus that needs dependable audio across multiple lecture halls, or in a house of worship looking for consistent vocal presence week after week. Wherever clear speech and reliable wireless performance matter, this system fits right in.

• 88 MHz UHF bandwidth with 3520 selectable frequencies
• True-diversity reception maintains a stable signal
• Handheld transmitter with an MME 865 condenser capsule and supercardioid pattern
• Approximate 330 ft transmission range enables wide stage coverage
• Ethernet connectivity for remote monitoring through Sennheiser software
• Up to eight hours of operation on two AA batteries
• Compatible with Sennheiser G1, G2, G3, and G4 series components