Using your Cort Elrick NJS 4-String Bass Guitar is a breeze. Just sit or stand comfortably and hold the bass. Place your fingers on the frets to change the notes. To get different sounds, use the controls on the bass. The Bartolini preamp lets you shape the tone to your liking. When it comes to tuning, use the Hipshot Ultralite tuners. They're easy to turn and keep the bass in tune well. For maintenance, keep your bass clean. Use a soft cloth to wipe it after each use. Avoid exposing it to extreme temperatures or humidity. Also, check the strings regularly. When they start to wear out, replace them with D'Addario® EXL165 strings. And if you notice any issues with the bridge or other parts, it's a good idea to take it to a professional guitar technician.