Using these Electro - Voice (EV) ZLX - 15P loudspeakers is easy. First, connect them to the correct power supply provided. Then, connect your audio source like a mixer or a music player. Place the speakers in a suitable location for the best sound dispersion. When using, avoid overloading the speakers to prevent damage. For maintenance, keep the speakers clean by gently wiping them with a dry cloth. Don't expose them to extreme temperatures or humidity. If you have any problems, refer to the user manual or contact customer support.