Sennheiser EW 300 G4-BASE SK-RC Wireless Microphone System with Bodypack

The Sennheiser 509667 is a wireless microphone system built around the EW 300 G4 platform, created for presenters who need dependable audio in corporate, educational, or public speaking settings. It combines a half-rack receiver made from metal for longevity with a bodypack transmitter that clips easily to a belt or pocket, allowing a speaker to move freely without signal dropouts.

With an 88 MHz tuning range and 3520 selectable frequencies, the system gives you plenty of room to find a clear channel, even in busy conference centers or lecture halls. True diversity reception uses two antenna paths to maintain a stable link, so the audience hears every word without interference. An OLED display and a jog wheel on the receiver make setup quick, even for technicians who are juggling multiple rooms.

The bodypack transmitter accepts any compatible lavalier or headset microphone through its locking 3.5 mm connector. You can adjust input gain from the front panel to match quiet or energetic presenters, and you can choose 10, 30, or 50 mW of RF output power to suit local regulations or distance requirements.

In larger venues, up to 32 channels can operate side by side. An Ethernet port lets you monitor and control all channels through Sennheiser Control Cockpit software, which is handy when the gear is installed in ceilings or racks you cannot reach easily. The receiver also works seamlessly with earlier evolution series components, protecting existing investments.

Power comes from two standard AA batteries or an optional rechargeable pack, delivering up to eight hours of run time. That is long enough for a full day of seminars, worship services, or back-to-back training sessions without swapping batteries mid-event.

• 88 MHz tuning range with 3520 selectable frequencies
• True diversity receiver with OLED display for clear status feedback
• Bodypack transmitter offers adjustable input gain
• Selectable RF output power at 10, 30, or 50 mW
• Supports up to 32 channels running at the same time
• Ethernet connectivity for network monitoring through Sennheiser Control Cockpit software
• Runs up to eight hours on AA batteries or an optional rechargeable pack
• Backward compatibility with evolution G4, G3, G2, and G1 components