We bought the Walkie Talkies a year ago for our then 7 year old and they are still working. Definitely robust and work well.
We live surrounded by woodland and they have been used about 1 1/2 miles apart and although crackly they can still be used. I don’t think we would get the 5 mile range here but on more open ground I’m sure we would.
Perfect for both adults and children and at that price you can’t go wrong.