1.The book-like shape present a particular style. 2.The location of five-dimension rocker and function keys accept a bold design. 3.Keyboard adopts a basic element in plane constitution to reaches an alteration in calmness for integrated effect of vividness and flexibility. A combination of circuit board layout and modern plane art for back lines shows a high grade and fashion. 4.Carving grooves on the lateral side will not only add the intensity of material but also play a role of slide resistance and beautiful effect. 5.In general style, black and white color with low tone and elegance offer a rich individuality.