Do you have a question about the YIBOO UJ4703 and is the answer not in the manual?
Open battery case, insert 6 AA batteries following polar indicator, and shut the cover.
Details controller charging (30-40 min, light changes) and USB charging (30-40 min, light off).
Gently push throttle stick up for higher flight or release for lower flight.
Use rudder stick left for counter-clockwise, right for clockwise turns.
Push right control lever forward for forward movement, backward for backward movement.
Adjust rudder trim knob to stop anticlockwise rotation.
Adjust rudder trim knob to stop clockwise rotation.