Chen. May I suggest to usie a countdown or a reverse countdown.

Starting december 1st and reveal a tiny bit of information. 2nd a bit more. 3rd even more. 4th an image revealing part of the device. 5th more info. 6 more. 7th more and more. 8 image. 9th more image. 10th some info. 11th moooore info and so forth ...and then...31st reveal the complete device.

These image you are posting are completely random and make no sence.