Sennheiser EW-D ME4 Wireless Lavalier Microphone System (R1-6: 520-576 MHz)

The Sennheiser EW-D ME4 SET with ME 4 Cardioid Lavalier delivers professional wireless performance with pristine 24-bit digital audio, a remarkable 134 dB dynamic range, an equidistant tuning grid, and convenient Bluetooth setup through the Smart Assist App on your phone. Designed for simplicity yet packed with advanced features, it is well suited for both new and experienced users, offering reliable operation for presenters, educators, clergy, and live performers in theaters, classrooms, and houses of worship.

The system’s wide dynamic range eliminates the need for input adjustments on the transmitter, while the equidistant tuning grid enables up to 90 simultaneous channels without frequency conflicts. UHF transmission extends range up to 330 feet, and a 56 MHz bandwidth provides 2240 selectable frequencies for dependable operation in crowded environments. Intelligent Switching Diversity ensures protection from RF interference, and the ultralow 1.9 ms latency keeps audio perfectly in sync during live performances. Bluetooth connectivity allows fast pairing and remote control through the Smart Assist App, which can automatically adjust levels and secure a stable signal within seconds.

This set includes a single-channel EW-D EM receiver, the discreet ME 4 cardioid lavalier microphone designed for clear speech while reducing background noise, and the lightweight EW-D SK bodypack transmitter with a rugged metal housing built for daily use. The transmitter pairs with the receiver using Bluetooth Low Energy at distances up to 120 feet and operates for eight hours on AA batteries or twelve hours with the optional BA 70 lithium-ion pack. The receiver features a half-rack metal chassis with removable antennas, suitable for tabletop use or rackmount installation, and is built to withstand the demands of professional applications.

The receiver’s high-contrast OLED display, streamlined menu system, and auto-scan function make setup quick and efficient, while its balanced XLR and unbalanced 1/4-inch outputs connect easily to mixers and PA systems. Detachable antennas allow for upgrades, and the system’s equidistant tuning grid, inherited from Sennheiser’s flagship models, prevents intermodulation issues while maximizing channel availability. Intelligent Switching Diversity monitors incoming signals across two antennas to maintain audio quality, and UHF operation avoids interference from 2.4 GHz networks.

With the Smart Assist App, users can configure, monitor, and control up to sixteen channels per mobile device, with support for multiple devices when managing larger systems. The app streamlines setup with automated frequency allocation, channel naming, muting, and real-time monitoring, while also providing access to tutorials and detailed manuals. For enhanced reliability, the system can be expanded with upgraded antennas, front-mount kits, directional antennas, and active antenna splitters to support multiple receivers in larger installations.

The EW-D ME4 SET is also compatible with a variety of Sennheiser microphones and transmitters, including the MKE 2 subminiature lavalier for broadcast-quality audio, the ME 2 omnidirectional lavalier for flexible pickup, the ME 3 cardioid headset for presentations, handheld SKM-S transmitters with interchangeable capsules for vocalists, and CI 1 instrument cables for guitar and keyboard use. With its versatility, rugged construction, and professional-grade audio quality, the EW-D ME4 SET is a dependable wireless system for a wide range of applications.