need help for Walkie-talkie for my yard

Hi everybody!

My name is Pascal and I come from Switzerland! :smiley:

I have a large yard and I need walkie tokie that work fine in and out the building.
In this building I have wall larger more than 1.5 meters!
I need a minimal range, like 350-400 meters but with strong power to go through the walls! The walls are made โ€‹โ€‹of reinforced concrete!

My budget is around 450-500 Swiss Francs.
What kind of walkie tokie I need? (PS: I need 4 walkie tokie)
And where can I buy it?

Pascal

Without an amateur radio license for you and all the members of your family, you will need to buy PMR-446 radios. These will easily cover your yard. This is a license-free two way radio service, similar to the USA Family Radio Service.