Features:1. HDMI two-way switcher 2 in 1 out/1 in 2 out2. Function introduction: two-way mutual conversion (2 in 1 out/1 in 2 out), HD 4K (4k@30Hz), one-key switch (simple operation), dual power (HDMI power supply + 5v power supply), audio and video synchronization ( Enjoy the sound vision), plug an..