SUPERIOR CONNECTIVITY - Features a 3-pin XLR female flange mount, ensuring a secure and reliable connection for professional audio equipment in fixed installations. OPTIMIZED FOR INSTALLATION - Designed with a required cut-out hole of 24mm (0.94 inches), simplifying the mounting process and ensuring a precise fit for various panels. ROBUST AND DURABLE - Built to last, the Sennheiser IS Series flange mount offers exceptional durability, making it ideal for demanding environments and frequent use. COMPACT DESIGN - With an overall diameter of 36mm (1.41 inches) and a depth under flange of 27.5mm (1.08 inches), it fits seamlessly into tight spaces.