It was invented digital papers that can say something in depends what was programmed in it memory. Scientists affirm that new technology can be used in advertising and products packing.

For example, Tourist Company prints advertising prospect on the same paper. In this case situation will be very interesting. When a client touches postcard with beach images, he hears short description of this place. In digital paper manufacturing conductors that transmit information to a microchip when it is changed pressure were used.

All sound files are saved in microchip. Speakers that are printed on the paper transmit sounds that are formed by several layers of the same speakers.

This functional layer is placed between thick cardboard paper and the paper where text or image is printed. Papers like that are very expensive at the moment, but inventors search new possibility to cutting costs and also the size of paper.

In this case, it can be used in cigarettes packaging. Inventors dream of new cigarette packs that can alert smokers about danger of smoking.