한국소비자원 2020-06-16T01:36:06Z 2020-06-16T01:36:06Z 2019-09-09 2019-09-09 1002840567 https://www.kca.go.kr/eng/sub.do?menukey=6007&mode=view&no=1002840567 https://www.kca.go.kr/repo/handle/2015.oak/6279 한국소비자원 http://creativecommons.org/licenses/by-nc-nd/2.0/kr/ Hobbyist drones vary in quality and performance including hovering ability and maximum flight time news