The present invention provides methods and apparatus for selecting relating to content selection. Voice signals are transmitted from a first telephone device of a first party to a second telephone device of a second party via a public switched telephone network connection. The lid has at least one heat-dissipating pin mounted on the lid. When the power plug is over-heated and the temperature of the power plug gradually increases, the thermochromic materials or the LED will display a warning message. By enabling user input gestures on the case of computing devices, the various aspects permit one hand operation of the devices including intuitive gestures that do not require the users focused attention to accomplish. The calendar also has a magnetic element, supported by the cover member, to hold metallic pieces such as paper clips for a user to keep the surrounding surface organized.