A midrange speaker is like a superhero that focuses on the middle parts of sound. Just like how Iron Man has special gadgets for flying and shooting lasers, a midrange speaker has special tools that make it good at playing the sounds that are not too high or too low.
You see, sounds are like colors. Just like how red and blue are high and low colors, sounds have high and low parts too. When you listen to music, you hear many different sounds coming from different instruments. A midrange speaker makes sure the sounds from instruments like the guitar and the piano, which are in the middle part, are heard very clearly.
Think of it like a big ear that's really good at picking up sounds that are not too high, like a bird chirping, or too low, like a big dog barking. It's just really good at hearing and playing back sounds in the middle of the sound range. That's why it's important to have a midrange speaker if you want to hear all the different sounds in your music clearly.