Had a set of VHS that WOULD make the distance, but after 6 bagillion recharges they croaked and I could not get battery packs for them. Too, they were some heavy.
Units I run now are Audiovox GMRS-1535. These varmits are supposed to make 5 miles, in reality, as GB said, terrain makes the call.
In heavy timber, ridges, and mountains I'd say a fair average is 3 "clicks" (kilometers) which is less than 3 miles.
Batteries last and last in these radios, and out of all I've tried, these I've kept :wink: