Shure ksm8 details: 

The Shure KSM8 Dualdyne™ Microphone is the world's first handheld dual-diaphragm dynamic microphone, perfect for professional vocal applications in live sound and studio environments. Shure KSM8 takes dynamic microphone technology to a groundbreaking level, offering greater output with minimal proximity effect. The Shure KSM8 provides a clean, detailed signal with minimal feedback. Each Shure KSM8 Dualdyne is crafted with superior components and tested to meet world-class Shure quality standards, performing exceptionally even in demanding live environments.

The Shure KSM8 Dualdyne™ Microphone is the world’s first handheld dual-diaphragm dynamic microphone, ideal for professional vocal use in live sound and studio environments. The Shure KSM8 takes dynamic microphone technology to a new level, delivering higher output levels with minimal proximity effects. The Shure KSM8 produces a clean, detailed signal with minimal echo. Each Shure KSM8 Dualdyne microphone is built with high-quality components and tested to meet Shure’s world-class quality standards, even in the most challenging live environments.