Using this JBL EON518S subwoofer is easy. First, connect it to the correct power supply provided. You can then connect it to your audio system according to the instructions. When using, place it on a stable surface to avoid vibrations. Keep it away from water and high - temperature areas. For maintenance, regularly clean the exterior with a soft cloth. Don't use abrasive cleaners. If you encounter any problems, contact the JBL support team.