The Sennheiser EW-D ME4 SET (R1-6) is a complete digital wireless system specifically configured with a cardioid lavalier microphone, operating in the R1-6 frequency band (520 to 576 MHz). This set includes the compact EW-D SK bodypack transmitter paired with the ME4 cardioid condenser lavalier microphone and a compatible EW-D series single-channel rackmount receiver. The ME4 microphone features a cardioid polar pattern, which provides focused frontal pickup while rejecting sound from the sides and rear. This makes it an excellent choice for high-volume stages, news reporting, or any environment where background noise rejection is crucial, offering superior isolation compared to omnidirectional lavaliers.

The system leverages the full capabilities of the EW-DX platform, delivering broadcast-quality 24-bit/48 kHz digital audio with ultra-low latency and secure 128-bit AES encryption. The bodypack transmitter offers clear status feedback via an OLED display. This ready-to-use set is ideal for professional presenters, broadcast journalists, theater actors, and worship leaders who require the discreet form factor of a lavalier microphone combined with the noise-rejecting benefits of a cardioid pattern and the absolute reliability of Sennheiser's top-tier digital wireless technology.