Dingsun 4k HDMI Switch HDMI switches are widely used in home entertainment, meeting rooms, schools, and a variety of training places. It allows for switching up to 4 HDMI inputs into one output, Avoid frequently plugging/unplugging the HDMI cables. Superior Quality Dingsun HDMI switch’s core chip comes from the SILICONIMAGE company of American, and MCU is manufactured by ST: SGS-THOMSON Microelectronics. Signal Stability The HDMI switch have amplify signal function, the output sends the high definition audio or video signals to a high definition display, so the signal transmission is stable and farther away Easy Plug and Play Easy plug & play operation Simply plug in the HDMI input sources into the input connections and the output connection to your TV or projector Worry-Free Warranty 18-month warranty and friendly customer service Please Note ※ It is not contain HDMI cable and have not MHL port ※It does not well compatible with Pronto, Comcast DVR, Cox Contour receiver and Xfinity Comcast cable box ※ This does not support HDR, HDCP 2.0, HDCP 2.2, HDMI 2.0 ※ Please tear insulating sheet before using the IR remote ※ To get 3D, all units connected to the switch output must support 3D ※ If your source device is 4k@60hz(HDMI 2.0 and HDCP 2.0, HDCP 2.2), please set up the resolution to 4k@30hz to use this 4 port HDMI Switch How to set the Resolution to fit our hdmi switch: 1. Connect your "4k@60hz(HDMI 2.0) input device" directly to the TV 2. Then go to “Setting-Picture-Resolution(choose “Auto”)-then go to “HDMI Color Fomat”(choose “Auto”) Specifications Weight: 100g AC:100V-240V, Output: DC5V/1A Product Size: 3.15” x 2.8” x 0.71" Package Content 1 x HDMI Switch 1 x Remote Controller 1 x USB Cable 1 x AC Adapter 1 x User Manual