JC-IP9000 is designed for interactive teaching in school and meeting in business. Using LED light source, lamp life up to 30,000Hrs, you never need to change lamp Ultra short focus makes it prefect for school teaching, no shadows. Inbuilt – in both Android and Windows OS, interactive function and speakers, JC-IP9000 becomes the most popular and practical tools in teaching. It only needs you to connect a power cable, it will give you everything you need in classroom.