i must say i found everything about this man/website professional. i had a question about shipping it was answered in a few minutes tops. any questions about his product were also almost instantly answered. he cared about my range and was eager to know how much i gained from using the antenna. i was so happy with dealing with this guy that i know ordered the anker battery and 2 amp setup can't wait to see how much more i get in range with my phantom 4. my wife thinks i'm a total dork but flying my drone a few miles away at 40 plus mph is pretty fun to me.