Using this 2 - channel compressor, limiter, and gate is easy. First, connect it to the proper power supply that comes with it. Then, link it to your audio system as per the standard setup. When using, adjust the settings according to your audio needs. Remember to keep it in a dry and clean place to avoid damage. For maintenance, occasionally wipe it with a soft cloth to keep it looking good. If you encounter any issues, consult the user manual or contact customer support.