New consumer goods purchased in the Czech Republic are subject to the period of 24 months, during which you can complain about the defects in goods.
This period cannot be reduced for goods that are sold as new, even if you agree with it.
In the case of used goods, the period for complaining about defective performance may be reduced to a maximum of 12 months, but you cannot complaint about defects that have already been present at the time of purchase and the seller has informed you of them.