
Sennheiser EW IEM G4-TWIN-A sets for wireless monitoring systems 516 - 558 MHz LED
Wireless audio transmission
On this page you’ll find a ranking of the best Audio accessories from Sennheiser. To give you a quick overview, we’ve added the most important product details. This page always stays fresh and updates automatically.
The high-quality wireless Sennheiser G4 Twin In-Ear Monitoring System offers outstanding concert experiences, not only for your audience but also for yourself. This robust all-in-one wireless monitoring system is designed for professional live use and is suitable for all in-ear applications. The transmitter supports two receivers and includes two bodypacks.
Robust bodypack receivers and IE 4 in-ear monitors deliver crystal-clear sound across the entire frequency spectrum. The steel-made stereo transmitter in half-rack format with an OLED display makes managing the system easy. The transmitter and receivers establish a wireless infrared connection simply and flexibly. The range is up to 100 meters.
SR IEM G4 Tabletop Transmitter:
Frequency range: 516 - 558 MHz
Audio inputs: 2x XLR-3/6.3 mm combo, electronically balanced
Audio outputs: 6.3 mm stereo, balanced
Dimensions approx. 202 x 212 x 43 mm
Weight approx. 980 g
EK IEM G4 Body Receiver:
Power supply: 2 AA batteries, 1.5 V or BA 2015 battery pack (not included)
Operating time approx. 4-6 hours, depending on volume
Limiter –18 dB - –6 dB, adjustable in 6 dB steps, can be turned off
Dimensions approx. 82 x 64 x 24 mm
Weight approx. 125 g (with batteries)
Included in the package:
SR IEM G4 stereo transmitter
2x EK IEM G4 stereo receivers
2x IE 4 headphones
AA batteries
Antennas
GA 3 rack mount kit
Quick start guide
Safety sheet
Power supply
Note: Multiple frequencies are available; please inquire with our customer service for options.

Sennheiser EW IEM G4-TWIN-A sets for wireless monitoring systems 516 - 558 MHz LED
Wireless audio transmission
The Sennheiser EW IEM G4-B Set is a professional wireless in-ear monitoring system designed for live performances. It allows artists and technicians to monitor and control their performance in real time, creating an exceptional experience for both the audience and the performers. With a robust design and a variety of features, this system is ideal for daily use on stage. The combination of a reliable pocket receiver and high-quality IE 4 earphones ensures clear sound reproduction across the entire frequency spectrum. Wireless synchronization between the transmitter and receiver is simple and efficient via infrared, making handling during the performance easier. Compatibility with Sennheiser's WSM control software allows for flexible frequency assignment and monitoring, supporting adaptation to various venues and requirements.
- Robust all-in-one system for in-ear applications
- High-contrast OLED display in the stereo transmitter
- Easy wireless synchronization via infrared
- Compatible with Sennheiser WSM control software
- Up to 16 compatible channels with 1680 selectable frequencies.

Sennheiser EW IEM G4-B sets for wireless monitoring systems 626 - 668 MHz LED
Wireless audio transmission
The Sennheiser XSW IEM SET (C) is a professional wireless in-ear monitoring system designed for musicians, performers, and sound technicians who require reliable, high-quality personal monitoring. This complete system includes a bodypack transmitter, an IEM receiver, and all necessary accessories for immediate use and operation. Operating in the frequency range of 516-558 MHz with 1680 selectable frequencies, the system offers exceptional signal stability and interference-free performance even in frequency-intensive environments. The transmitter features balanced XLR and 6.3 mm jack inputs with adjustable input gain for various audio sources from mixers or instruments. With a robust metal construction and intuitive operation, the bodypack transmitter is built to meet the demands of live performances and touring conditions. The accompanying IEM receiver delivers clear, detailed sound with low distortion for precise monitoring of vocals and instruments. The system provides a practical range of up to 100 meters under optimal conditions, allowing performers freedom of movement on stage. Power is supplied by two AA batteries, providing approximately 8 hours of continuous operation and clear battery status indicators for reliable performance monitoring. The comprehensive package includes a 3.5 mm to 6.3 mm adapter cable, a belt clip, and a protective carrying case for safe transport and storage. Weighing 85 g for the transmitter and 45 g for the receiver, the system maintains a lightweight profile for comfortable long-term wear during performances. The Sennheiser XSW IEM SET represents a professional monitoring solution with the audio quality and reliability expected from Sennheiser products, making it suitable for live sound applications, theater productions, and worship environments where precise personal monitoring is essential.

The Sennheiser EW IEM G4-TWIN-B Set is a professional wireless in-ear monitoring system designed for live performances. It provides artists and technicians the ability to monitor and control their performance in real-time, creating an exceptional experience for both the audience and the performers. With a robust design and a variety of features, this system is ideal for daily use on stage. The combination of a reliable pocket receiver and high-quality IE 4 earphones ensures clear sound reproduction across the entire frequency spectrum. Wireless synchronization between transmitter and receiver is simple and efficient, making handling during the performance easier. Additionally, compatibility with Sennheiser's control software allows for flexible frequency assignment and monitoring, supporting adaptation to different venues and requirements.
- Robust all-in-one system for in-ear applications
- High-contrast OLED display in a full metal housing
- Easy wireless synchronization via infrared
- Up to 16 compatible channels with 1680 selectable frequencies
- Range of up to 100 meters.

Sennheiser EW IEM G4-TWIN-B sets for wireless monitoring systems 626 - 668 MHz LED
Wireless audio transmission
The Sennheiser EW IEM G4-A is a professional in-ear monitoring system designed for live sound applications. It offers a robust and reliable solution for artists and technicians who require clear and precise audio transmission. With a compact and sturdy design, this wireless all-in-one system allows for easy handling and flexibility on stage. The pocket receiver and IE 4 earphones ensure excellent sound quality across the entire frequency spectrum, providing an optimal listening experience. Wireless synchronization between the transmitter and receiver is easily achieved via infrared, while the WSM control software allows for flexible frequency allocation and monitoring. With a range of up to 100 meters and high transmission power, the EW IEM G4-A is ideal for professional applications.
- Robust wireless all-in-one system for in-ear applications
- High-contrast OLED display in a full metal housing
- Lightweight and flexible wireless synchronization via infrared
- Up to 42 MHz bandwidth with 1680 selectable frequencies
- Compatible with Sennheiser control software WSM.

The Sennheiser XSW IEM SET (B) is a professional wireless in-ear monitoring system designed for live performances and studio applications. This UHF transmission system operates in the frequency range of 572 to 596 MHz with 96 available channels, providing reliable wireless audio monitoring with minimal interference. The system features a wide frequency response of 45 Hz to 15 kHz, delivering clear and precise audio playback for monitoring purposes. The transmitter unit includes two combined XLR/6.3 mm TRS inputs for flexible connectivity with various audio sources, along with a BNC coaxial RF antenna connection and a detachable antenna design for optimal signal transmission. Powered by a 12 V power supply, the transmitter ensures stable operation during extended use. The receiver unit operates on two AA batteries and offers standard 19-inch rack mounting compatibility for professional installation. The system includes a dedicated headphone output for direct monitoring and utilizes UHF transmission technology for robust wireless performance. This monitoring solution is designed for musicians, sound engineers, and performers who require reliable wireless in-ear monitoring with professional audio quality and transmission stability. The system's frequency bandwidth and multiple channel options provide flexibility in various performance environments, while the professional connectivity options ensure compatibility with standard audio devices. Designed for demanding professional applications, this wireless monitoring system delivers consistent performance and reliable audio transmission for critical monitoring needs.

The Sennheiser EW IEM G4-A1 Set is a professional wireless in-ear monitoring system designed for live performances. It allows artists and technicians to monitor and control their performance in real-time, creating an exceptional experience for both the audience and the performers. With a robust design and a variety of features, this system is ideal for daily use on stage. The combination of a reliable pocket receiver and high-quality IE 4 earphones ensures clear sound reproduction across the entire frequency spectrum. Wireless synchronization between the transmitter and receiver is simple and efficient via infrared, making handling during the performance easier.
- Robust all-in-one system for in-ear applications
- Stereo transmitter in half-rack width with OLED display
- Lightweight wireless synchronization via infrared
- Compatible with Sennheiser control software WSM
- Up to 42 MHz bandwidth with 1680 selectable frequencies.

Sennheiser EW IEM G4-A1 sets for wireless monitoring systems 470 - 516 MHz LED
The Sennheiser EW IEM G4-TWIN-A1 Set is a professional wireless in-ear monitoring system designed for live performances. It provides artists and technicians the ability to monitor and control their performance in real-time, creating an exceptional experience for both the audience and the performers. With a robust design and a variety of features, this system is ideal for daily use on stage. The pocket receiver and IE 4 earphones ensure clear sound reproduction across the entire frequency spectrum, while the stereo transmitter is housed in a sturdy metal casing. Wireless synchronization between the transmitter and receiver is simple and efficient via infrared, making handling during the performance easier. Compatibility with Sennheiser's WSM control software allows for flexible frequency assignment and monitoring, supporting adaptation to different environments and requirements.
- Robust all-in-one system for in-ear applications
- Clarity across the entire frequency spectrum for daily stage use
- Stereo transmitter with high-contrast OLED display
- Lightweight wireless synchronization between transmitter and receiver
- Up to 42 MHz bandwidth with 1680 selectable frequencies.

Sennheiser EW IEM G4-TWIN-A1 sets for wireless monitoring systems 470 - 516 MHz LED