The projector is responsible for displaying pictures of objects.

Moreover, the projector can also be connected to its own portable notebook.

Play some electronic documents or movies for students.

Generally, you can buy a booth for about 2000 yuan.

There are many in China, such as Red River Founder and so on.

Buy a projector with a brightness of about 3,000 lumens and a price of about 4,000 yuan.

Looking at the price in BenQ, the quality is ok, and the light bulbs are not expensive.

If you have an extra budget, you can spend hundreds of dollars on a stereo.

Cheap and affordable models should be around 8000. See for yourself.

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