The Shure BETA 91A is a premium boundary microphone designed for capturing the rich sound of kick drums and other low-frequency instruments. Its compact, low-profile design allows for easy placement on stage or in the studio, while the tailored frequency response ensures clarity and precision. The built-in preamp provides a high output level, making it ideal for both live performances and recordings. With its durable construction and reliable performance, the BETA 91A is a favorite among sound engineers and musicians alike, delivering exceptional sound quality every time.