The Beta 58A Cartridge for Shure SLX/ULX Wireless Handheld microphones is a professional replacement capsule designed to deliver the signature Shure sound with exceptional clarity and presence. Engineered for live vocals, it features a supercardioid polar pattern that minimizes background noise and feedback while focusing on the performer’s voice. The cartridge maintains consistent performance across all SLX and ULX handheld wireless systems, ensuring reliable operation in professional live sound environments. Its rugged construction provides durability for touring, stage, and repeated use. Easy to install and compatible with Shure wireless handhelds, the Beta 58A Cartridge is a dependable choice for maintaining high-quality vocal reproduction in demanding performance settings.