Big Size 3.5ch RC Helicopter Radio Control Helicopter Ascend,descend,left,right,forward,backward Very strong,not easiy broken Big Size 3.5ch RC Helicopter Radio Control Helicopter -Ascending,descending ... -polymer battery Model of electric engine:7Color box size:98*15.1*35cm.Carton size:99*48*71cm.Test Reports: EN71,EN62115 ...