Projection curtain (about 800, 120 inch or larger according to the teacher's choice)

Projection hanger (about 100, partially delivered directly)

Multimedia platform (1000 or so, now it is a steel platform, which is more expensive, but very easy to use)

A set of computers (3000-5000, you choose)

A power amplifier (about 800)

A pair of speakers (about 500)

Optional accessories: multimedia central controller (500-2000) and a set of wireless microphones (about 500-800).