Sennheiser EW-D ME4 Digital Wireless Lavalier Microphone Set

The Sennheiser 508721 is a lavalier microphone set that uses digital transmission in the UHF band to give presenters and performers clear, reliable sound without a complicated setup. It combines the ME 4 cardioid clip-on microphone with a rugged metal bodypack transmitter and a half-rack receiver, offering a solution that feels professional yet remains easy to use.

Because the system operates in the UHF spectrum, it can run up to 90 channels and offers 2,240 selectable frequencies, so it stays stable even in venues crowded with wireless gear. A 134 dB input dynamic range lets you move from a quiet aside to an energetic keynote without touching the gain, preserving every nuance of the voice.

The EW-D Smart Assist App streamlines configuration. Through Bluetooth Low Energy, you can scan for open frequencies, pair components, and monitor signal strength right from a phone or tablet, cutting setup time and reducing stress before a show.

Power options are flexible. Insert standard AA batteries for a quick start or switch to the optional lithium-ion pack for up to twelve hours of continuous operation, making the system a dependable partner for day-long conferences, worship services, or multi-set stage performances.

The ME 4 microphone focuses on the speaker and rejects ambient noise, which makes the set well suited for lecture halls, corporate boardrooms, houses of worship, and on-camera work. Clip the mic to a lapel, stash the transmitter in a pocket or on a belt, and you are free to move naturally without cables holding you back.

Sennheiser includes the essentials—bodypack transmitter, receiver, power supply, rackmount hardware, and connection cables—so you can go from unboxing to sound check in minutes.

Highlights:

• Digital transmission in the UHF band for extended range and consistent signal
• ME 4 cardioid clip-on microphone that delivers high speech intelligibility
• EW-D Smart Assist App with Bluetooth Low Energy for fast, phone-based setup
• 134 dB input dynamic range handles quiet speech and loud exclamations without manual gain
• Up to 90 channels with 2,240 selectable frequencies to navigate busy RF environments
• Operates on AA batteries or an optional lithium-ion pack for up to 12 hours of runtime
• Package includes bodypack transmitter, half-rack receiver, power supply, rack hardware, and cables