Sennheiser EW 300 G4-HEADMIC1-RC Wireless Headmic set

Product Overview

The Sennheiser EW 300 G4-HEADMIC1-RC is a complete professional wireless headset system combining the HSP 4 neckband microphone, the SK 300 G4-RC bodypack transmitter with remote-control mute capability, and the EM 300-500 G4 half-rack true diversity receiver. Designed for presenters, lecturers, performers, and houses of worship audio directors who need reliable hands-free wireless audio, the G4 300-series delivers a step up in RF performance over the entry-level G4 100 and 200 series with up to 88 MHz of switching bandwidth and up to 32 simultaneous channels per band. The system is compatible with Sennheiser's Control Cockpit and Wireless Systems Manager software for network-based monitoring and frequency coordination in multi-channel installations. At $1,359, it occupies the professional presenter segment of the Evolution Wireless G4 lineup.

Product Description

The EM 300-500 G4 receiver is a half-rack form factor true diversity unit, meaning it independently evaluates signals from two antennas and selects the stronger path in real time to minimize dropouts caused by multipath interference. The receiver includes a built-in network port for integration with Sennheiser's Control Cockpit monitoring software on Windows, enabling facility managers to view battery status, RF levels, and channel assignments across all connected receivers from a single interface. Operating range reaches up to 100 meters / 330 feet line of sight, and the system's 88 MHz tuning bandwidth provides access to a large number of clean frequencies in congested RF environments — an important factor in professional presentation venues where Wi-Fi, IEM systems, and other wireless devices compete for spectrum.

The SK 300 G4-RC bodypack transmitter is the remote-control variant, which allows an operator at the EM 300-500 G4 receiver or control software to remotely mute and monitor the transmitter — a valuable feature for theater stage managers, broadcast directors, and corporate AV operators who need to manage mic status without interrupting the speaker. RF output power is adjustable to 10, 30, or 50 mW to balance range and battery life based on the application. The HSP 4 neckband microphone included with this set is a pressure-gradient cardioid designed for the natural posture of a presenter: the flexible neckband positions the capsule in front of the mouth without a visible cable run, and the microphone capsule is sweat-resistant and mechanically robust for repeated daily use. The HSP 4 connects to the bodypack via a locking connector and is available in beige; the side-worn positioning ensures consistent capsule-to-mouth distance regardless of head movement.

This set ships in the AW+ (470–558 MHz) and GW1 (558–608 MHz) frequency bands. The EW 300 G4-HEADMIC1-RC is backward-compatible with select EW 300 G3 transmitters and the system accepts the full range of existing EW 300/500 G4 accessories including alternative microphone capsules, antennas, and charging solutions.

Key Features

• Complete Wireless Presenter System — Includes HSP 4 neckband mic, SK 300 G4-RC bodypack transmitter, and EM 300-500 G4 half-rack diversity receiver as a matched, ready-to-use set.
• Remote Mute Control (RC) — The SK 300 G4-RC bodypack supports remote mute activation from the receiver or control software, giving AV operators full mute management without touching the transmitter.
• True Diversity Receiver — Dual-antenna diversity on the EM 300-500 G4 continuously selects the stronger RF path, minimizing dropouts in challenging RF environments.
• 88 MHz Switching Bandwidth — Wide tuning range supports up to 32 simultaneous channels per band in frequency-dense installations.
• Adjustable RF Output Power — 10 / 30 / 50 mW output power settings on the bodypack allow range and battery-life optimization per application.
• Network Port on Receiver — Ethernet port enables integration with Sennheiser Control Cockpit and Wireless Systems Manager for centralized multi-channel monitoring and control.
• HSP 4 Neckband Microphone — Sweat-resistant cardioid capsule with flexible neckband positioning for consistent placement on active presenters, performers, and teachers.
• Up to 100 m / 330 ft Range — Sufficient for large auditoriums, lecture halls, and theater stages.
• Half-Rack Form Factor — EM 300-500 G4 receiver occupies half a rack unit; two units fit in a single 1 RU rack space using the included hardware.
• Auto-Scan and Easy Setup — Automatic frequency scanning identifies clean channels; fast transmitter sync via infrared reduces setup time.
• Compatible with EW 300/500 G4 Ecosystem — Full accessory and capsule compatibility with the broader Evolution Wireless G4 300/500 product family.

Typical Applications

• Corporate presentations and conference keynote addresses
• Houses of worship sermon delivery and stage production
• University and K-12 lecture hall instruction
• Theater and live performance where remote mute is operationally required
• Broadcast interview and studio presenter applications
• Trade show and exhibition floor presentations
• Government and municipal council chambers
• Training facilities and corporate learning environments

Technical Specifications

Frequently Asked Questions

Q: What does the "RC" designation mean on this system?

RC stands for Remote Control. The SK 300 G4-RC bodypack transmitter supports remote mute switching triggered from the EM 300-500 G4 receiver or Sennheiser's control software, allowing an operator to mute or unmute the microphone without physically accessing the transmitter on the presenter's body.

Q: How does the EW 300 G4 differ from the EW 100 G4 or EW 500 G4?

The EW 300 G4 occupies the mid-range of the G4 lineup. It offers better RF performance and wider switching bandwidth than the EW 100 G4, including network control capability via the ethernet port. The EW 500 G4 adds higher audio quality with 32-bit AD/DA converters and compatibility with the MKE 2 premium lavalier. The 300-series is the most common choice for professional installation applications.

Q: Can I use other microphone capsules or transmitters with this system?

Yes. The EM 300-500 G4 receiver is compatible with all EW 300 G4 and EW 500 G4 transmitters. The SK 300 G4-RC bodypack accepts other EW-compatible microphone capsules with the matching connector type, enabling the use of lavaliers, earset mics, or instrument cables in place of the included HSP 4.

Q: Is the HSP 4 microphone sweat-resistant?

Yes. The HSP 4 is designed for active presenter use and includes a sweat-resistant capsule, making it suitable for extended wear during high-activity performances, lectures, or exercise environments.

Q: What software can I use to monitor and control this system remotely?

The EM 300-500 G4 receiver includes a network (RJ45) port compatible with Sennheiser's free Control Cockpit software (Windows) and Wireless Systems Manager. These tools allow centralized monitoring of RF levels, battery status, mute state, and frequency assignments across all connected units in a multi-channel installation.

Q: How many channels can this system operate simultaneously?

The EW 300 G4 supports up to 32 simultaneous wireless channels within its 88 MHz switching bandwidth per band. For installations requiring more channels, multiple frequency bands or additional systems can be deployed with proper frequency coordination via Wireless Systems Manager.

Q: What batteries does the SK 300 G4-RC transmitter use?

The SK 300 G4-RC uses standard AA batteries or Sennheiser BA 2015 rechargeable packs (sold separately). Sennheiser's L 2015 charging station is compatible with the BA 2015 packs for multi-unit deployments.

Q: Is this system compatible with EW 300 G3 components?

The EW 300 G4 series maintains select backward compatibility with EW 300 G3 transmitters. Full compatibility details depend on the specific frequency band and component; consult Sennheiser's compatibility documentation for confirmation before mixing G3 and G4 hardware.