STM 99 instrument microphone for accordeon, bassoon, clarinet, drums, flute, guitar, saxophone, stringed, studio, trombone, trumpet Due to the modular concept, our new STM99 series give users optimal flexibility. Because of their linear frequency characteristics, the capsules of high studio quality offer true sound, while they still keep a velvet character. The compact and ultra leight-weight design causes the STM 99 series to be the ideal choice in every situation.