Product features: The input is connected through the Type-C interface, and the c-type high-definition video output interface is supported. It can extend and mirror the screens of mobile phones and computers to video display devices such as projectors or HDMI. Use scenario: 1 The mobile phone is connected to the TV, projection, etc. through the adapter cable, and you can watch live broadcasts, TV shows and play games on the big screen. 2 The computer is connected to the projector, TV, etc. through the adapter cable; it can meet the needs of office, conference, speech and so on. 3 TYPE-C host, connect HDMI display through conversion cable Packaging: 1 * USB C to HDMI male adapter Note: 1 Make sure that the USB-C of your laptop or mobile phone supports DP Alt mode. 2 Supporting 4K@30HZ resolution requires a 4K signal source, HDMI cable and output display. 3 One-way transmission, can only convert Type-C to HDMI, not HDMI to Type-C, and cannot improve the video or audio quality.