Easy setup, just connect! Switch between video sources with the push of a button! Convenient when you don't have enough HDMI ports on your TV or when you want to use multiple devices with one port! You can share up to 3 HDMI devices with one port. Simply connect the HDMI cables to the selector for easy setup. Supports large-screen, high-definition 4K! Outputs 4K video as is if your devices support it! You can switch between multiple devices and use the high-definition 4K video on your 4K TV. Switch screens with the switch on the main unit! With LED lamps to indicate the selected device! When you turn on the HDMI device, the main unit automatically turns on and displays the video on the TV. If you want to switch the video when using multiple devices, you can change the video displayed by pressing the switch on the main unit. No AC adapter required, no need to supply power! No AC adapter is required as it is powered by the HDMI devices! You can easily use it by simply connecting the HDMI cables. ◎Product Specifications◎ Interface Input: HDMI Type A Female x3 Output: HDMI Type A Female x1 Maximum Resolution: 4K2K (4096 x 2160) Resolution: 480I/576I/480P/576P/720P/1080I/1080P/2160P HDMI Standard: HDMI1.4B+HDCP1.0/1.1 Material: ABS + other Notes * The screen may be distorted or flicker depending on the performance of the HDMI device. * To use 4K, your device must support 4K. * HDMI cables are not included. * Japanese instruction manual is not included. * As this is an imported product, there may be some minor scratches.