score:3
You could find some information in the web site of the Italian customs.
Being Italian, I find it quite embarrassing to realize that the f.a.q. section is not translated into English.
As far as I was able to understand reading the f.a.q. you can have with you imported goods for a maximum value of 430,00 €. The 150,00 € you were mentioning in the question is the limit for children under 15 years of age.
Upvote:2
Are you talking about entering the EU? It's the same all across the EU. The information you're looking for is right here.
Other goods (including perfume, coffee, tea, electronic devices etc.):
Up to a value of €430 for air and sea travellers
The value on an individual item may not be split up. The value of personal luggage (i.e. suitcases) and medicinal products for the personal needs of the traveller do not count. Member States may reduce the above limits to € 150 for travellers under 15 years.