Small cells are like little towers that help our phones get better signal so we can make calls and use the internet. They are different from big cell towers because they are smaller and can fit in places like on top of buildings or on street lamps. They work by using a wireless connection to send signals to our phones, making sure we can talk to our friends and family and use our apps without any problems. So, just like how we need a little stool to reach a high shelf, our phones need small cells to get closer to the signal so we can use them better!