A versatile HDMI switcher that supports two inputs in two modes: switch between two HDMI sources to a single display, or duplicate one source to two displays. This combination device provides flexible configuration for different AV layouts. Ideal for home theaters, business presentations, educational environments, and gaming setups where displaying the same content on multiple screens is essential. Delivers lossless image quality over long distances with adaptive resolution, ensuring stable and clear audio and video distribution across paired displays. Plug-and-play with no external power supply required. One-button switching makes it easy to change sources quickly while maintaining reliable, high‑quality display performance. Compact, compatible design supports standard HDMI devices and displays, delivering consistent performance without complex setup. Use scenarios - In a living room, switch between a cable box and a game console to a single TV. - In a classroom, mirror the instructor’s laptop to two projectors for front and back row visibility. - In a conference room, present from two laptops to one screen or duplicate to two displays for team review.