Using your BetaFPV Beta65x 2S Micro Quadcopter is a breeze. First, charge the 2 BT2.0 300mAh batteries fully. Connect the battery to the quadcopter using the BT2.0 connector. Turn on your transmitter and bind it to the receiver of the quadcopter according to the instructions for your specific receiver option. Before taking off, make sure the propellers are firmly attached and there are no loose parts. Fly in an open area away from people, buildings, and obstacles. Whether you're flying indoors or outdoors, enjoy the extreme power provided by the 0802 14000KV motors. When it comes to maintenance, after each flight, check the propellers for any signs of damage. If they're worn or broken, replace them with the spare 31mm 4 - blades props included. Keep the quadcopter clean by gently wiping it with a soft cloth. If there are any issues with the motor or other components, refer to the user manual. Remember, the BT2.0 connector is very important for stable power supply, so handle it carefully to avoid disconnection. Store the quadcopter and batteries in a cool, dry place. If you're not using the batteries for a long time, store them at an appropriate charge level to maintain their lifespan.