Precautions:   1. Do not charge the battery when you are away from home, do not charge the battery immediately after flying, and do not over-discharge the battery (over-discharge may cause the battery to fail to be charged and become obsolete). After the battery is fully charged, the battery should be cut off in time and cannot be charged for a long time. .   2. Do not modify any parameters and wiring without knowing the flight control and remote control.   3. Turn on the remote control before powering on the aircraft, unplug the power switch after the flight, and then turn off the remote control to prevent accidents.   4. This product is not a toy and is not suitable for children under 14 years of age.   5. If you are a beginner, it is recommended to be assisted by an experienced adult   6. Novices should pay attention to not holding the airplane by hand when the airplane is turning, and don't let children touch it. Prevent being scratched.   7. Please turn off the start switch in time when the aircraft falls from a wall or hits other objects during flight, otherwise it may cause damage to the flight control motor. Check whether the aircraft is damaged, whether the screws are loose, and wait until everything is normal before taking off again.         Functions and features:   220mm wheelbase   Built-in OSD Betaflight   Support BLHeliSuit configuration   Support voltage 3-4S   7-10 minutes of flight time   Remote control distance (with FLYSKY remote control) about 400 meters         Paddle:   Model: 5043   Pitch: 4.3 inches   Material: PC   Weight/G: 4.63G   Inner diameter of center hole: 5mm   Paddle diameter: 13.5mm   Center thickness: 7mm         ESC:   Working voltage: 2-6S   Maximum continuous working current: 45A   Maximum instantaneous working current: 50A   Support communication modes: DShot150/300/600, PWM, Oneshot125, Oneshot42 and Multshot   Firmware version: BL16.7   Installation hole distance: 20 * 20mm / 30.5 * 30.5mm   Product size: 44 * 44 * 5.5   Packing size in mm: 62 * 58 * 18 mm   Product net weight: 13.6 grams   Package weight: 27 grams         Image transmission:   Weight: 12g   Input voltage range: 7-24V   Frequency: 48CH   Output power: 0mW / 25mW / 100mW / 200mW / 400mW / 600mW switchable   Transmission distance: ≥0.5km25mW, ≥1km200mW, ≥2km600mW   Installation size: 30.5*30.