I bought this rattle for my baby 5 months, which immediately appealed to baby. My son quickly understood the principle: shake the rattle to hear contines and see the little lights light up one after the other. It is very well designed for a good grip with its handle and easily transportable. I would note still some negatives: - In my view, it is a little too heavy for a small baby (recommended from 3 months) that has not the strength to avoid being knocked off the top. - Although Vtech thought to sensitive ears of little ones by offering two volume levels, I find that even choosing the lowest volume, it remains too strong knowing that this age toys are often close to their ears.