It's pretty important to really narrow down who your target users are. For example, just saying "teenagers between the ages of 13-18" can still be pretty broad.

It's pretty important to really narrow down who your target users are. For example, just saying "teenagers between the ages of 13-18" can still be pretty broad. If you can narrow down even further to something like "teenagers between the ages of 13-18 who play the piano" then you can figure out a distribution channel where you can find these individuals. In this example, maybe contacting local piano tutors or local music stores may help you reach your target audience. Even if your product brings some value universally, see if you can figure out the tiniest sub-group possible that benefits the most from your product.