Portable, of course, easy to use. If you buy it, you can put it in the study, bedroom and living room and move it at will. Now some big factories in mini-projector are doing well, such as BenQ, Otto Code, Acer and so on. In particular, two newly upgraded micro-projection GP3 and GP20 in BenQ are very distinctive: the size of micro-projection GP3 is like a portable disk drive, which can be carried with you when traveling, and it can also be equipped with a mobile power supply, which can also project in places where there is no power supply, and support mobile phone wireless connection and USB flash drive playback. Micro-projection GP20, A4 paper size, can support 720P video. If you like to follow Korean dramas, American dramas and English dramas, it won't hurt your eyes to look at the picture with GP20. If it can be equipped with a DVD base, it can also be used as an early education device to play some popular science videos for children. If you just put it at home, it will be more suitable to choose GP20.