ITS a wrist band contain projector.In that wrist band and smartphone connected with Bluetooth. Band is water proof and touch sensor is used in the projector.In this we used the option as per smartphone work.we use in water also.
This is furture smart class room technology.this make the student good environment. students like the class room in stress less environment.The Smart Classroom project explores the challenges and potentials of
the Intelligent Environment as a new human-computer interaction
paradigm. By constructing an intelligent classroom for tele-education,
we try to provide teachers the same experiences as in an ordinary
classroom when giving tele-education lessons. The Smart Classroom could
actively observe, listen and serve the teachers, and teachers can write
on a wall-size media-board just by their hands, or use speeches and
gestures to conduct the class discussion involving of the distant
students. This paper discusses the advantages and main underlying
technologies of this system