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The Sennheiser MD 421 is a German cardioid dynamic microphone, widely used for speech in broadcasting and for music in live concerts and the recording studio. Introduced in 1960, the internal large-diaphragm transducer element of the MD 421 is still produced unchanged by Sennheiser. The MD 421 is considered a classic, an industry standard.
Sennheiser electronic GmbH & Co. KG ( / ˈzɛnhaɪzər /, German pronunciation: [zɛnˈhaɪ̯zɐ]) is a German audio equipment manufacturer headquartered in Wedemark. Sennheiser specializes in equipment for both the consumer and professional audio markets, including microphones, headphones, and loudspeakers . Founded in 1945 by Fritz Sennheiser ...
Singer Cody Simpson using a wireless microphone headset in a 2013 concert in Montreal. A wireless microphone, or cordless microphone, is a microphone without a physical cable connecting it directly to the sound recording or amplifying equipment with which it is associated. Also known as a radio microphone, it has a small, battery-powered radio ...
Sennheiser MD 441. The Sennheiser MD 441 is a large-diaphragm dynamic microphone introduced by Sennheiser in 1971. [1] Following the introduction of the MD 21 in 1953 and the Sennheiser MD 421 in 1960, the MD 441 was widely-used for radio and television reporting and was often seen as part of political appearances around the world.
In the UK, use of wireless microphone systems requires a Wireless Telegraphy Act license, except for the license free bands of 173.8–175.0 MHz and 863–865 MHz, sometimes referred to as "Channel 70" (not to be confused with TV Channel 69, which was 854–862 MHz and always required a license from JFMG Ltd [1] although licences are no longer ...
"The Department, and the Cybersecurity and Infrastructure Security Agency are working with CrowdStrike, Microsoft and our federal, state, local and critical infrastructure partners to fully assess ...
Microphone. Shure Brothers microphone, model 55S, multi-impedance "Small Unidyne" dynamic from 1951. A microphone, colloquially called a mic ( / maɪk / ), [ 1] or mike, [ a] is a transducer that converts sound into an electrical signal.
Experts generally agree that Americans consume too much added sugar every day, so many of us turn to zero-calorie sweeteners to satisfy a sweet tooth. The US Food and Drug Administration has ...