... Game Machine/ game machine parts :Instructions of Use:1.Adapt to the machine,switch to SW1,to choose OV low level or +5V high ... in kiosk, redemption machine, shop ,parking lot , amusement park ,amusement machine etc . Why choose Likang 1: Quality guaranteed: Special supervision ... with other manufacturers in this field , at the same quality , our price is competitive than others . 3: Payment ...