This type later became known as the lip microphone, widely used in the First and Second World Wars.
2.
Disney Sing It : High School Musical 3 : Senior Year for the Xbox 360 allows use of the wireless Microsoft Lips microphones.
3.
On one occasion, Andrew Faulds poured a jug of water inside his trousers, totally soaking him, and he " did the rest of the programme in a raincoat ! " On another occasion, some of the actors smeared mustard on his lip microphone, causing him some difficulties during the recording session.