This headset is compatible with ALL Rugged Radios Intercoms. Take your ride to the next level with the Ultimate Alpha Audio Headset, engineered for premium audio, all-day comfort, and rugged durability for every off-road adventure. Featuring Alpha Audio speakers, this headset delivers full-range sound with enhanced highs and lows, perfect for both voice communication and music. Whether you're tearing through the desert, crawling over rocks, or cruising with friends, Alpha Audio ensures you hear, and feel, every detail. Choose between Over-the-Head (H22) or Behind-the-Head (H42) configurations, both built with carbon fiber styling, plush gel ear seals, and breathable cloth covers for unmatched comfort during long rides. Integrated volume control and a hard-wired coil cord keep you in command and connected. Features: Alpha Audio speakers for premium, full-range sound with enhanced highs and lows Built-in volume control for quick, personalized audio adjustments while riding 2-N-1 compatibility with both Rugged Wired and stereo intercoms True stereo for music and voice clarity on stereo intercoms M101 dynamic noise-cancelling mic with adjustable flex boom Lightweight Ear cup with Durable Carbon Fiber Styling Gel ear seals and cloth ear covers for all-day comfort Adjustable stainless steel headband (H22) for a custom, no-compromise fit Hard-wired coil cord for a secure and reliable connection Includes: (1) H22 (Over-the-Head) or H42 (Behind-the-Head) Alpha Audio Headset (1) 2-N-1 Adapter for Rugged Wired and stereo intercom systems Compatibility:Compatible with all Rugged Radios STX Stereo and Rugged Wired intercoms, as well as other popular systems like PCI Trax (when used with appropriate intercom cables).