... system, you can try it with mouse in advance, no problem. Q 4, do I have to do the app ... , you can add them on our system to run, no problem. Q 10, do you have games for kids? effects ... you can simulate the applications on computer with normal camera, no problem. Q 19, what is the delivery time? A: ... pleasure to show you and support you. Most of problem is only do not know clearly how to use.Thannks ...