The black KSM8/B Dualdyne dynamic handheld vocal microphone from Shure is a dual-diaphragm dynamic microphone designed for vocal reproduction and sound reinforcement in live performance and premier professional venues. The Shure KSM8/B Dualdyne dualdyne dynamic handheld vocal microphone is a dual-diaphragm dynamic microphone designed for vocal reproduction and sound reinforcement in live performances and professional TIP-Level venues..PZA MORE SPECS