Sennheiser EW 300 G4-HEADMIC1-RC Wireless Omni Headset Microphone System

The Sennheiser 509672 is a wireless headset microphone system created for presenters who need sound that stays dependable while they move freely. It forms part of the Evolution Wireless G4 family, so it meets the day-to-day demands of conference rooms, lecture halls, and corporate training spaces.

At the heart of the system is the SL Headmic 1, an omnidirectional headset that captures speech evenly even when the wearer turns their head. The microphone connects to the SK 300 G4-RC bodypack transmitter, a compact unit that slips easily into a pocket or clips to a belt. Together, these components deliver speech that feels natural to listeners across the room or on a video stream.

The included receiver uses a metal housing for long service life and features an OLED screen that stays readable in dim light. Navigation buttons sit right under the display, so quick adjustments are straightforward. When systems multiply across a campus or convention center, an Ethernet port lets technicians monitor and control every channel through Sennheiser Control Cockpit or Wireless Systems Manager software without leaving the booth.

With up to 88 MHz of tuning bandwidth and support for 32 concurrent channels, the system fits smoothly into busy RF environments. A working range that reaches 330 feet gives presenters the confidence to move from stage to audience without dropouts. Two standard AA batteries power the bodypack for as long as eight hours, so a full day’s agenda can finish before the batteries do.

Existing owners of Evolution Wireless G3 or G2 equipment will appreciate that the new components remain compatible with earlier receivers and transmitters, which helps large facilities expand in stages instead of replacing everything at once.

• Uses up to 88 MHz of tuning bandwidth and supports 32 channels
• Reliable transmission range up to 330 feet
• Omnidirectional SL Headmic 1 for consistent vocal pickup
• SK 300 G4-RC bodypack transmitter with remote control capability
• Receiver with OLED display and easy to reach navigation buttons
• Built-in Ethernet port for network control through Sennheiser software
• Works with earlier Evolution Wireless G3 and G2 components
• Runs up to 8 hours on two AA batteries