The Sennheiser MMD 845-1 microphone module is a replacement or alternative head for Sennheisers wireless transmitters across its Evolution D1 AVX SpeechLine and 2000 Series products. With a crisp lively high-end the MMD 845-1 BK will turn your wireless transmitter into an airy open-sounding vocal microphone with the properties of Sennheisers e845 without the need for wires. With a sturdy metal housing consistent response and focused supercardioid pick-up pattern the MMD 845-1 is ideal for a convenient workhorse vocal microphone to keep in your venue or to take with you on the road as part of a portable wireless system.