proceeds received certe the mouse is so cute BUT !!! the button is syncronisation that does not exist !!! when I fall over jappuie directly on the circuit of smiles they even forgot myself of the button during production ... therefore impossible to use it because syncronisation not !!! more record is not at all that of the mouse on the photo but for another model which I find unacceptable !!! I am very upset !!! jai contact seller I still await his answer, in terms of Amazon is I have called and they also contact seller ... I await his answer. I highly recommend this product!