Full range or whatever range. I have one that is two years old. It has an AR 600. One of my club members has a new one with a SAFE RX receiver. We both have flown them with DX5Es out so far that you can not hardly tell which end is up (maybe 400 yards or more) and they still work just fine, unless you can't figure out which end was up. They will fly farther than you can see to fly 'em.