1. Airplane size: ZY530 PRO > SU57 > SU35 (for pictures, please refer to the comparison chart below) Difference: ZY530 PRO with camera, others without camera 2. We hide the battery inside the plane, if you can't find it, check inside the plane first. 3. Airplanes can't flyOne reason is that the wings on both sides are not horizontal, you can put the plane on level ground to see if the wings are parallel to the ground. If the tail of the aircraft is not parallel, you can adjust it to parallel and try again. Please note when using the battery 1. When the battery is dead, it must be charged in time to ensure that the battery has remaining power. If the battery is completely drained, the battery will not charge 2. When charging the battery, disconnect the remote control car. Be sure to remove the battery and charge it separately 3. If you do not use the remote control aircraft, please disconnect the battery from the wire of the remote control aircraft, never connect it, and fully charge the battery, otherwise it will damage the battery Features: Small size and light weight design. Complete the assembled preparatory flight suit. The aircraft uses ultra-tough EPP special foam material, which is flexible and resistant to fall. Imitated the classic fighter SU-35, with a compact and domineering appearance. Even Have a great time shopping!