This product is designed for PC online game with high speed USB interface.  Its functions include Game pad, keyboard & mouse together.  24 buttons are programmable with time interference counted in mini-second (ms).  Its programs can be stored in both game pad’s memory and PC software.  Those 24 programmable buttons are F1~F12, 1, 2, …, 12.  Each buttons can exchange functions each others.  Auto & Turbo functions are included too.