I think those will only work well in a very urban environment. The amazon warehouse is about 23 miles from my house. 50-60km range or even 100km will not work f

I think those will only work well in a very urban environment. The amazon warehouse is about 23 miles from my house. 50-60km range or even 100km will not work from home deliveries. 100km seems a little short even for USPS.