5 cm (2") miniature speaker with plastic diaphragm

you can simply continue 3D printing

En god kvalitets cooling fan fra Fysetc

which 3D Eksperten also sells

ELEGOO - Power Supply - Neptune 3 Pro PrimaCreator - Reservedel 5 cm (2") miniature speakerPower supply for ELEGOO Neptune 3 Pro 3D printer ELEGOO Neptune 3 Pro Power Supply is a compatible power supply for ELEGOO Neptune 3 Pro 3D printer. The power supply is designed to provide stable and reliable power to your 3D printer. The power supply has a compact size and is easy to install. It has high efficiency and low power consumption. If you are looking for specific spare parts or accessories for your Elegoo 3D printer, you can find them here