BI-DIRECTIONAL HDMI SWITCH: HDMI switch box can do bidirectional work, help you connect two HDMI sources to one HDMI display Or connect one HDMI source to toggle between two displays (2 TVs CANNOT display simultaneously.) 4K RESOLUTION: 4K HDMI switch with High bandwidth 10.2Gbps data transmission, can support 3D, 1080P, 4Kx2K@30hz resolution and HD audio. (Please set resolution down to NOT exceed 4K@30hz when use HDMI 2.0 device like PS4 Pro.) PLUG & PLAY: HDMI selector switch is easy to operate, No external power required, everything just plug and play. Simply swap between HDMI signals with one single press on the button and check its working status with 2 indicator lights. WIDE COMPATIBILITY: HDMI switcher 2 ports can work with most devices with standard HDMI interface. Input: PCs, Xbox 360, PS3/PS4, Roku Express, Amazon Fire TV Stick, Blu-ray DVD, etc; Output: Full HD TVs, projectors, monitors and more.