Using this Matek 5V buzzer beeper is a breeze. First, make sure your drone's power supply voltage is within the 4.5 - 5.2V DC range. Then, simply connect the beeper to your drone. If you lose your drone, turn on the beeper, and it will start emitting a 90dB beeping sound to help you find it. When it comes to maintenance, keep it in a dry place and avoid exposing it to water or extreme temperatures. If you encounter any issues, refer to the user manual by clicking the provided link. And always handle it gently as it's quite lightweight at just 1.9g.