Features KSM9 microphones offer exceptional consistency across all frequencies, providing more gain before feedback, while decreasing proximity effect. As the premier choice in handheld wireless microphone options for Axient , UHF-R , and ULX-D , KSM9 microphones are built to exacting Shure endurance standards, renowned worldwide and proven night after night, center stage. Exceptional consistency across all frequencies, providing more gain before feedback, while decreasing proximity effect Dual gold layered, low-mass Mylar diaphragm design Switchable polar patterns ( supercardioid and cardioid) Advanced suspension shock mount Premium electronic components including Class A transformerless preamplifier circuitry Gold-plated internal and external connectors, including XLR Output Durable aluminum housing Available as wireless handheld transmitter SKUs Aluminum carrying case