The home page has five buttons. If you want to press the pen, you can try this function. Three buttons produce sound and the other two buttons are mute. The second surface is a joystick that simulates a joystick. The third page is a switch that can be turned on and off permanently. The fourth side relieves finger fatigue and repeated friction. The fourth area has a ball and three dials, and according to reports, the spinning ball can bring a good mood.
