Sennheiser EW-D ME2/835-S SET Digital Wireless Combo Microphone System (R4-9: 552 to 607 MHz)

The Sennheiser 508772 is a digital wireless combo microphone system called the EW-D ME2/835-S SET, operating in the R4-9 frequency range from 552 to 607 MHz. It gives performers, speakers, and presenters the freedom to choose between a handheld microphone and a discreet clip-on lavalier without swapping receivers.

The handheld transmitter features an interchangeable capsule design, so you can adapt the sound to different voices or future upgrades. The ME 2 lavalier clips easily to clothing for hands-free speech. Both transmitters use metal housings that tolerate travel and daily setups, and the half-rack receiver fits smoothly into portable racks or fixed installations.

Setup moves quickly thanks to Bluetooth Low Energy. Open the EW-D Smart Assist app, scan for open spectrum, and push the settings to the system from a phone or tablet. The receiver’s high-contrast OLED screen backs up the app with clear information on level, frequency, and battery status, while an auto-scan function finds a clean channel with one button.

Audio quality stays consistent because the 24-bit digital platform delivers a 134 dB dynamic range. That wide headroom removes the need to ride sensitivity controls when a presenter shifts from a whisper to a shout. UHF transmission, combined with a 56 MHz tuning bandwidth and 2240 selectable frequencies, keeps the link stable even in busy RF environments, and up to 90 channels can run at the same time when larger productions require them.

Power choices adapt to different workflows. Use standard AA batteries for up to 8 hours, or switch to the optional lithium-ion pack for about 12 hours before a recharge. Both options install quickly, so changeovers during rehearsals or services stay simple.

From club stages and sanctuary podiums to lecture halls and conference rooms, the EW-D ME2/835-S SET delivers clear sound, quick setup, and rugged hardware in one coherent package, making professional wireless performance attainable for users at every experience level.

Highlights:

• 24-bit digital audio with a 134 dB dynamic range for sound that is clear and detailed
• Includes both a lightweight handheld microphone and a ME 2 lavalier for flexible performance styles
• Bluetooth Low Energy links to the EW-D Smart Assist app for fast setup and remote control
• 56 MHz tuning bandwidth with 2240 selectable frequencies fits a wide range of venues
• Supports operation of up to 90 channels at once for large productions
• Runs up to 12 hours with the optional lithium-ion battery pack or about 8 hours on AA cells
• Transmitter housings are made of metal, and the half-rack receiver is built for touring and installations
• Handheld transmitter accepts interchangeable capsules to tailor vocal tone
• High-contrast OLED display and auto-scan simplify frequency management
• UHF transmission provides reliable range and strong resistance to interference