Using this Whirlwind microphone splitter is easy. First, connect your microphones to the input channels. Then, connect the output channels to your desired audio devices. Make sure your audio devices support the signal output from the splitter. When using, always check if the phantom power is enabled if required by your setup. As for maintenance, keep the splitter in a dry and clean place. Avoid exposing it to extreme temperatures or moisture. Regularly check the connections to ensure they are secure and free from damage.