You can connect to WiFi and download the required square dance video directly on the network. You can download without OTG cable TV, or you can download with traffic.
Square dance is an art form performed in the square. It is a rhythmic dance performed by residents in squares, dams and other open spaces for the purpose of fitness, usually accompanied by high-decibel and rhythmic music. Created by non-professional dancers and spontaneously organized by the masses, most of the participants are middle-aged and elderly people, among which the dance elements of aunts are diverse, including national dance, modern dance and Latin dance.