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

Easy to use wireless headset Microphone Set (GBw Range: 606-678 MHz)

Easy to use solution for lecturers and presenters: Simple wireless system for lively presentations and speeches - features SK 300 G4 bodypack transmitter, SL Headmic 1 and EM300-500 G4 receiver.

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£1,005.00 £837.50
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Best choice for your business, top of the class in education. The G4 300 Series uses the power of an increased switching bandwidth of up to 88 MHz. New frequency ranges allow to operate multi-channel setups with dozens of channels while securing reliable operation - despite digital dividend.

The powerful professional SL-HEADMIC1 is the pro’s choice for lively lectures and speeches. Its high speech intelligibility makes the headset microphone – besides its good look – absolutely reliable. Remote mute switch available for the bodypack transmitter.

G4 is where there’s no second take
In the streets while shooting a documentary or on the red carpet for an interview. On a large film set or in a production studio. G4 captures the magic with such ease, almost as if you had planned it for years. As the simple mobile solution and a reliable partner on every set, evolution wireless has become the leading choice amongst filmmakers and journalists alike for its ease of use, versatility and reliability.

ew 300 G4 - The most flexible solution for Business and Education
The evolution wireless microphone series has established itself as the worldwide industry standard. With ew 300 G4, Sennheiser yet raises the bar of known quality one more time by offering even higher flexibility and optimized support for digital workflows.

A multipurpose tool for all applications
ew 300 G4 is the perfect multipurpose tool for any scenario with its wide range of possible applications and its broad product portfolio.


Government - Speech
For public usage where maximized transmission reliability is needed, ew 300 G4 is the perfect solution with its robust, speech optimized and remote controllable devices.

Education - Speech and Lecture
ew 300 G4 meets the real-life requirements of universities, schools and colleges with reliable, future-proof solutions. All products are to 100% focused on ease of operation for a multitude of users. All capsules are optimized for speech. The entire microphone portfolio of ew 300 G4 is remote controllable with the Sennheiser Control Cockpit software for campus wide management.

Corporate - Presentation
Modern workplaces call for state-of-the-art audio solutions that ensure professional communication. With its speech optimized, sturdy microphone capsules, ew 300 G4 offers highly flexible solutions with great sound quality and utmost reliability in any kind of presentation.

Rental - Presentation, Performance, Moderation
One fits all: no matter what job to do, ew 300 G4 covers all professional applications from voice to performance, from rock to business. Your customers can rely on robust and reliable devices for everyday usage.

Hospitality - Live Performance and Moderation
For the multitude of your customers’ events, you can rely on only one flexible tool – ew 300 G4. As all-in-one solution suitable for every purpose, ew 300 G4 covers the wide range from moderation in conference halls to groovin’ live performances on stage.


Flexible applicability
Thanks to its great sound, reliable RF transmission and robust devices combined with the right accessories, ew 300 G4 is probably the most flexible wireless microphone system available. You can rely on it in any situation, in any application, in any location. It covers all professional audio demands and suits perfectly for any speech, lecture, conference, moderation or live performance on stage.

Broad UHF frequency range
Extending the known reliability and robust RF performance of the evolution wireless microphone family, ew 300 G4 now offers with up to 88 MHz an even increased switching bandwidth for easier channel setup. Eleven frequency variants between 470 and 865 MHz cover globally local regulatory specifics for flexible setups – be it mobile microphone usage or installed.

Broad UHF frequency range - Multi-channel operation
evolution wireless is known for its outstanding performance in multi-channel operation. With switchable transmission power of up to 50 mW and the increased switching bandwidth of up to 88 MHz, ew 300 G4 covers all kinds of multi-channel setups for any kind of event indoors or outdoors. Together with the broad range of antenna components, even huge setups can be organized and optimized in a snap.

Multi-channel operation - Remote controllability
For optimal operation of even large scaled setups, the entire ew 300 G4 system is remote controllable with Sennheiser’s state-of the-art software solutions. For installed setups, the Sennheiser Control Cockpit Software is the ideal tool for easy handling, campus wide control and maintenance of the entire ew 300 G4 system, while for mobile and stage applications Sennheiser's Wireless Systems Manager is the best choice.

Coming soon!

Dante ready
With its completely Dante enabled microphone portfolio, ew 300 G4 satisfies customer demands for cost efficient state-of-the-art audio integration solutions. As part of the ew 300 G4 microphone series, the SL DI 4 XLR four input Dante interface easily adds wireless microphone receivers or add mic/line inputs to a Dante system. The small form factor of the SL DI 4 XLR allows it to be mounted almost anywhere and to get close to audio sources to minimize interference-prone analog wiring.

  • Easy to use, fast setup time
  • Integrated network port allows control, monitoring and setup via Sennheiser Control Cockpit and WSM Software
  • Broad range of products and existing accessories (such as microphones) allows usage in any kind of environment
  • Up to 88 MHz bandwidth, up to 32 channels
  • Increased RF output power (10/30/50 mW)
  • Transmission Range: up to 100 meters / 330 feet
  • Compatible with wireless speaker system LSP 500 PRO
  • RC (remote control) switch available for the bodypack transmitter
More Information

EM 300-500 G4 Receiver

  • Frequency range: GBw: 606 - 678 MHz
  • Dimensions: Approx. 202 x 212 x 43 mm
  • Compander: Sennheiser HDX
  • THD, total harmonic distortion: ≤ 0.9 %
  • Weight: Approx. 980 g
  • Audio output:
  • 6.3 mm jack socket (unbalanced): +12 dBu
  • XLR socket (balanced): +18 dBu
  • Signal-to-noise ratio: ≥ 115 dBA
  • Switching bandwidth: up to 88 MHz
  • Peak deviation: ±48 kHz
  • Nominal deviation: ±24 kHz
  • Modulation: Wideband FM
  • Power supply: 12 V DC
  • Antenna connector: 2 BNC sockets
  • Current consumption: 350 mA
  • Adjacent channel rejection: Typically ≥ 75 dB
  • Intermodulation attenuation: Typically ≥ 70 dB
  • Receiving frequency: Max. 3520 receiving frequencies, adjustable in 25 kHz steps, 20 frequency banks, each with up to 32 factory-preset channels, no intermodulation, 6 frequency banks with up to 32 programmable channels
  • RF sensitivity: < 2.5 μV for 52 dBA eff S/N
  • Squelch: 5 to 25 dBμV in steps of 2 dB
  • Equalizer:
    • Preset 1: Flat
    • Preset 2: Low Cut (-3 dB at 180 Hz)
    • Preset 3: Low Cut/High Boost (-3 dB at 180 Hz, +6 dB at 10 kHz)
    • Preset 4: High Boost (+6 dB at 10 kHz)
  • Temperature Range: -10 °C to +55 °C
  • Receiver Principle: True diversity
  • Blocking: ≥ 75 dB


SK 300 G4 Bodypack Transmitter

  • Dimensions: Approx. 82 x 64 x 24 mm
  • Compander: Sennheiser HDX
  • THD, total harmonic distortion: ≤ 0.9 %
  • Weight (incl. batteries): approx. 160 g
  • Signal-to-noise ratio: ≥ 115 dBA
  • RF output power switchable: Low: typ. 10 mW, Standard: typ. 30 mW, High: typ. 50 mW
  • Switching bandwidth: up to 88 MHz
  • Peak deviation: ±48 kHz
  • Nominal deviation: ±24 kHz
  • Operating time: Typically 8 h
  • Modulation: Wideband FM
  • Power supply: 2 AA batteries, 1.5 V or BA 2015 accupack
  • Current consumption:
    • at nominal voltage: typ. 180 mA
    • with transmitter switched off: ≤ 25 µA
  • Input impedance: 40 kΩ, unbalanced / 1 MΩ
  • Max. Input voltage: 3 Veff
  • Powering: 3 V battery / 2.4 V rechargeable battery
  • Transmission frequency: Max. 3520 frequencies, adjustable in 25 kHz steps, 20 frequency banks, each with up to 32 factory-preset channels, no intermodulation, 6 frequency banks with up to 32 programmable channels
  • AF frequency response: Mic: 80 – 18,000 Hz, Line: 25 – 18,000 Hz
  • Temperature Range: -10 °C to +55 °C
  • Frequency stability: ≤ ±15 ppm


SL Headmic 1

  • Connector: 3.5 mm jack plug or Sennheiser special connector (-4 variant)
  • Frequency response: 20 to 20,000 Hz ± 3 dB
  • Max. sound pressure level: 143 dB
  • Cable length: 1.6 m
  • Weight (without cable): approx. 7 g
  • Diameter:
    • of mic capsule: 3.3 mm
    • of boom arm: 1.1 mm
  • Pick-up pattern: omni-directional
  • Nominal impedance: 1 kΩ
  • Min. terminating impedance: 4.7 kΩ
  • Equivalent noise level: 27 dB(A)
  • Power supply: 4.5 to 15 V
  • Sensitivity: 5 mV/Pa ± 3 dB
  • Temperature Range Operation: -10 °C to 50 °C (14 °F to 122 °F)
  • Storage: -20 °C to 70 °C (-4 °F to 158 °F)
  • EM 300-500 G4 true diversity receiver
  • SK 300 G4
  • SL Headmic 1
  • GA 3 rackmount set
  • power supply
  • 2 AA batteries
  • 2 rod antennas
  • quick guide
  • safety guide
  • manufacturer declaration sheet