It’s designed for altitudes of 4500 to 9000 meters 29,530 feet/5.592 miles. Higher then advertised. History of UAV World Records Absolute Duration Record <a href="http://records.fai.org/uav/history_absolute.asp?id1=3" rel="nofollow" target="_blank">http://records.fai.org/uav/history_absolute.asp?id1=3</a> This will be ours soon!