Stylish and classic appearance. * Clapping controlled projection back-light function: Clapping the palm around the product, or gently knocking on the table where the product is, or lightly touching any position of the product, the back-light of the products will be turned on. The back-light will go off automatically in 2-3 minutes. * Clapping controlled projection function: When the clock receives any sound signal, the LCD back light and the projection light will be lighted on at the same time, the time figure will be projected to ceiling, wall or something else. Projection definition can be adjusted by Foci adjustment button. * Projecting angel and projecting focus can be adjusted. * With digital thermometer, it can detect the surrounding temperature and display it by number automatically. The measurement range is 0℃--50℃/32°F--122°F, it can displayed in either Centigrade(℃) or Fahrenheit(°F).