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).