Attractive price but ... you receive a product that does not contain the 3 engines and 4 sensors that are mentioned on the box, so you can not do anything with bits of plastic and delivered processor This is not the scam since Amazon precise small at the end of the specification: 612 rooms (without saying what are the missing pieces of the 619 announced by the manufacturer). Admit that it must be vicious to remove 7 Important parts of a box on which it is mentioned it is supposed to contain them. I returned the product. I hope not to have difficulties in repaying me because I have no way to prove that it is not I who removed the parts, except this little word "room 612".
