With the Isofix IQ base, you don't have to worry about whether your baby is travelling in a secure seat: a visual and audible signal tells you when the seat is correctly installed on the base. Thanks to the Click & Drive system, correct installation of the seat is quick and easy. The base fits Avionaut Pixel, Avionaut Pixel PRO, Avionaut Cosmo, Avionaut Aerofix and Avionaut Aerofix RWF seats - so you don't have to buy a new base when your child grows up and you upgrade to a new seat.