The 2 Pack SM58-S Cardioid Dynamic Handheld Wired Microphone with On/Off Switch Bundle includes Swivel Stand Adapter A25D and Storage Bag 26A13. The microphones feature a Cardioid Pickup Pattern, focusing on sound in front to minimize background noise and feedback. Their Frequency Response is tailored for vocals, brightening the midrange and attenuating bass frequencies to emphasize vocal clarity.The Uniform Cardioid Pickup Pattern further isolates the main sound source, prioritizing vocals over audience or instrument noise. The microphones are equipped with a Pneumatic Shock Mount to absorb handling noise, ensuring a clean audio signal even during bumps. An Effective Built-in Spherical Wind and Pop Filter minimizes wind noise and plosive sounds for smooth, professional audio. Built with Durable Construction, they withstand live performance rigors, featuring a tough grille and construction for accidental drops. The On/Off Switch allows quick muting for in-between-song moments or onstage banter. With an LR Connector, they are suitable for professional audio setups, and the Break-Resistant Stand Adapter ensures secure mic placement.