Using your Cort NJS5 - WHT Rob Elrick Signature Bass Guitar is a breeze. First, make sure your guitar is properly tuned using the Hipshot® Ultralite tuning machines. Plug in your instrument to an amplifier using the appropriate cable, and adjust the volume and tone controls on the Bartolini® Elrick NJS Special Preamp to get your desired sound. When you're not playing, always store it in the included case to protect it from damage. Keep the guitar in a stable environment with a moderate temperature and humidity level to prevent warping or cracking of the alder body and hard maple fretboard. Wipe down the strings with a clean cloth after each use to remove dirt and sweat, which can extend the life of the D'Addario® EXL170 - 5SL strings. Periodically check the frets for wear and the hardware for tightness. If you notice any issues, it's best to take it to a professional guitar technician for maintenance.