If it has not been set up yet, you can refer to the following instructions.
(1) How to set up proxy sharing using v2rayNg on Android
(2) How to set up proxy sharing in windows using v2rayN
(3) How to share nodes on iPhone using Shadowrocket
IP is the IP address of the PC, and the port is the HTTP port (10808) or SOCKS port (10809) of v2rayNG.