1.NOT ALL TYPE C CAN DO VIDEO AND AUDIO TRANSMISSSION! Make sure your computer type c port can support video transmission(USB 4.0/Thouderbolt 3/Thouderbolt 3 can support). 2.Mobile phone must support OTG function to transmit video [3-IN-1 USB C to HDMI Adapter]- KEHIPI 3-in-1 USB-C to HDMI Adapter can expand your USB Type-C PortCompatible Thunderbolt 3) into a 4k@60Hz HDMI output port, a 5Gbps USB 3.0 port, and a 100W USB-C PD charging port. This 3 In 1 USB C Hub/Converter can satisfy more of your expansion needs at the same time. Lightweight and portable, plug and play, no software or drivers required. [Immersive 4K@60HZ Display Output]- This USB-C to Digital AV Multiport Adapter provides video resolution up to 4K (3840x2160)@60Hz, which is 4 times clearer than 1080P. Bring you an immersive visual feast. Very suitable for home use, cinema entertainment, games, video conferencing, teaching, office, lectures, etc. [Lightweight & Portable]-A lightweight aluminum casing allows for greater