摘要:
An electrical device having a projection device for projecting image information onto a projection surface disposed externally to the telecommunication device; an inertial sensor to detect a movement of the electrical device; the electrical device being operable in a first operating mode so that the projection of the image information onto the projection surface follows a movement of the electrical device with a movement component in a plane disposed in parallel to the plane of the projection surface; the electrical device being operable in a second operating mode so that, in spite of the electrical device's movement, the projection of the image information onto the projection surface with a movement component in a plane parallel to the plane of the projection surface is at least partially substantially fixed; the electrical device being configured so that its movement in the second operating mode is interpreted as a user input.