An electronic piano is a musical instrument that looks like a regular piano, but instead of making sounds by hitting strings with hammers, it uses electricity to produce sound.
When you press down on the keys, the electronic piano uses sensors to detect which key you pressed, and then sends a signal to the electronic circuit board inside the instrument. The circuit board processes this signal and sends out a digital signal that makes a sound.
The sound that the electronic piano produces is generated by a computer chip that has pre-recorded samples of piano sounds. These samples are created by recording the sound of real pianos, and then storing them in the computer chip inside the electronic piano.
The electronic piano also has several buttons and knobs that you can use to adjust the sound. You can change the volume, add reverb (which makes the sound echoey), and even change the type of piano sound that is being played (such as a grand piano or an upright piano).
Overall, an electronic piano is a fun and versatile instrument that allows you to create beautiful piano music without the need for a large and expensive acoustic piano.