Compatible with OPS Core ARC and Team Wendy M-LOK rails - The multi-angle rotation rail adapter includes two sets of adapter accessories to fit OPS Core ARC rails and Team Wendy M-LOK rails, ensuring versatility and cross-system compatibility. Rotatable adjustment for convenient use - The bow rail mount headphone accessory features a rotation design to position the headphones as needed. When not in use, rotate the headphones to the back of the rail for better ventilation and easy portability. Integrated cable management - Built-in cable management keeps headphone cables secured and organized for a neat, hassle-free setup and reduced snag risk during movement. Maximized space on the rail - Mounting the headphones on the rear portion of the ARC rail adapter creates additional space on the top of the rail for other accessories, improving overall gear utility. Practical use scenarios - Patrol or field operation with OPS Core ARC helmet: install on the rear portion to keep the top rail clear for NVGs, lights, or optics, while maintaining quick access when needed. - Training or airsoft with Team Wendy M-LOK rails: use the two adapter sets to fit M-LOK rails, preserving top-rail space for additional devices. - Dynamic environments requiring cable discipline: use the cable management feature to route and secure cords, reducing snag risk during movement. Notes - Keeps compatibility with common helmet rail systems while providing adjustable headphone positioning, cable organization, and enhanced rail space utilization.