The Sennheiser EW100 G4-ME4 is a professional wireless lavalier microphone system engineered for discreet, high-quality audio capture in applications where a handheld microphone is impractical. Operating in the 516-568 MHz UHF band, this system provides reliable, interference-resistant transmission for presenters, actors, educators, and worship leaders who require hands-free operation and mobility. The core of the system is the compact bodypack transmitter, which is designed to be comfortably worn on a belt or hidden under clothing, and the ME4 miniature cardioid lavalier microphone. The ME4's cardioid polar pattern is crucial for live applications, as it offers a degree of feedback rejection and helps isolate the speaker's voice from ambient stage or room noise, providing clearer intelligibility than an omnidirectional alternative.

The system's rack-mountable receiver features Sennheiser's user-friendly G4 interface with a clear LCD for monitoring RF and audio levels, battery status, and frequency selection. Key professional features include an integrated frequency scan to automatically find the clearest available channel within the defined band, Pilot Tone squelch to ensure the receiver only outputs audio from its paired transmitter, and a high-quality compander for wide dynamic range and low-noise performance. The receiver provides balanced XLR and unbalanced 6.3mm outputs for flexible connection to mixing consoles, recorders, or portable PA systems. The included ME4 microphone comes with a variety of mounting accessories, such as clips and windscreens, to accommodate different clothing types and reduce plosive sounds.

Supplied in its original packaging, this set represents a complete, ready-to-deploy professional solution. The bodypack transmitter is robust and runs on standard AA batteries, while the receiver's 1U design is ideal for both fixed installations and mobile rack setups. The Sennheiser EW100 G4-ME4 system balances exceptional audio clarity, operational reliability, and ease of use, making it a preferred choice for broadcast, theater, corporate events, and any setting where clear, discreet, and reliable wireless speech reinforcement is essential.