Holy Stone HS170 Predator Mini RC Helicopter Drone HEADLESS FLIGHT SYSTEM orients the quad copter’s flight on the controller. Its range is 30-50 Meters with flying time 6-8 minutes. Charging time is 45-60 minutes (under current input 0.5A-1A) . This quadcopter has powerful, ultra-responsive motors. Adjust the throttle slowly to maintain control The USB charger should be used with a current input under 0.5A, or you could use an upgraded 5 in 1 battery charger ( B00QHUONLE ). Headless Mode brings much more confidence for the beginners and young children, under which no matter what direction the aircraft is facing, the forward stick is forward, and the back stick is backward. The Colorful LED lights make it easy to identify the front and back so as to make the quad a great night flyer. 3 Different Speed Modes for beginners to more advanced pilots. Super fast in the highest speed for a micro quad.