for the price you would expect a perfect product out that's not the case !!! the main problem is the assembly! a gap of one millimeter each piece .... NOT EVEN a set RIGHT !! soft screw under the central ring that suggest problems to change the batteries in the future, a gesture recognition is not perfect, too sensitive or not enough according to the movement, too long sounds every order and always the same .... not to mention finishing defects, polished object by hand but at what rate? if I refer is at my expense, without being about to have better, if I keep myself I have ... I think obtain warranty AZ ..... anyway I put two stars because good copies perhaps not have these defects but hey it comes down to playing the lottery! /// I filed a claim but here the seller accepts the return and was told "kindly" to in return parcel tracking WITH INSURANCE VALUE OF THE PRODUCT !!!! which would mean paying twice for being reimbursed only! it boggles ... so I contact the amazon customer service ... and I expect their answer who I am sure will be good ... but you still insist to enforce its rights .. .////le seller speaks a refund "if a fault is found" ... basically he wants to recover the product and then say that it has no defect and refuse to refund and .... as I would not have been me it will be hard to prove my statements ... //// the final as is Christmas soon, it will end gift for the son of the neighbors, less scrupulous view of his age, that I. this will make him a nice toy.