Product Description:The USB C to HDMI Compatible Adapter can connect your USB C port laptop or phone (support DP Alt Mode) to HDMI compatible monitor, TV or projector, support 4K@60Hz audio and video simultaneous transmission, on big screen.You can also enjoy ultra-realistic pictures. Two modes of mirroring and extension are supported. (Your host device must support this feature.)If you plan to display 4K content, make sure both your input and output devices support 4K resolution. 

notes:Not all USB-C ports are compatible, only USB-C 3.1 or Thunderbolt 3 ports that support ''DisplayPort Alternate Mode''.The type c to HDMI compatible adapter is only compatible with USB-C 3.1 and Thunderbolt 3 ports. (PS: Device sync for USB 3.1 Gen 1 and Samsung Galaxy S9/S8 may take longer)Compatibility list for USB-C DP ALt mode phones (full list currently):Compatible with LG G5, LG V20, LG V300LCompatible with HTC U12+,U11+,U11,U Ultra,HTC 10For Microsoft Lumia 950/950XL, Alcatel Idol 4s,Compatible with Samsung Galaxy S10+,S10,S9+,S9,S8+,S8,Note 9,Note 8Suitable for Huawei P30 PRO, P30, P20 PRO, P20, Mate20 PRO, Mate20, Mate20X, MateRS, Mate10PRO, Mate10, Honor V20, Honor Note10Package list: same screen line*1