An electronic keyboard is like a regular piano, but it runs on electricity instead of just your fingers hitting the keys.
Instead of hammers hitting strings inside the piano, electronic keyboards use something called "synthesizers" to make the noises you hear when you press a key.
Electronic keyboards can sound like lots of different instruments, like a guitar or drums, because they have different settings and buttons you can press to change the sound.
They also usually have a screen that shows what notes you're playing and other cool stuff like built-in songs you can play along with.
Overall, electronic keyboards are a fun way to make music and learn how to play piano!