Abstract: A movable touch device and an electronic device thereof are disclosed. The movable touch device comprises a casing having an external and an opposite internal surfaces; a first conductive layer with a first touch sensor circuit on the external surface of the casing, a second conductive layer with a second touch sensor circuit on the internal surface of the casing, and a communication interface unit installed on the casing for electrically coupling the first and second conductive layers to the electronic device. The movable touch device can be turned over or aligned in parallel to the back of the electronic device. The movable touch device and the display screen can be combined or separated, so that the transmittance of the screen will not be affected, and the electronic device can be removed, so as to provide a convenient carry.

Abstract: The present invention provides a method for generating voice signal in electronic books (E-books). The method includes the steps of: receiving a voice signal in response to a triggering signal for placing a bookmark; and displaying a functional icon of the bookmark corresponding to the voice signal in a region of the E-book. The present invention also provides a E-book reader, including: a display unit, a receiver unit, and a processing unit, wherein the receiver unit receivers a voice signal in response to a triggering signal for placing a bookmark, and the processing unit is used to display a functional icon of the bookmark corresponding to the voice signal in a region of the E-book.