The device aims to help you relax and clear your mind as you prepare to fall asleep. It's a metronome that teaches you how to fall asleep naturally, just tap on the top to activate the blue light. This dim light projects onto your ceiling to help you pace your breath. As it expands, you inhale, and as it contracts, you exhale. Dodow Sleep Aid was designed by people who were insomniacs themselves, and based on the research and dedication, it has helped a lot of people improve their sleep habits. The company promises that users can fall asleep in as little as 10 to 20 minutes. The blue light can be set to different brightness levels. Requires AAA batteries included. Retail price is $60 online. The packaged box which the device comes in has a tear, where I removed the gift sticker. It is just the package that was damaged not the device. Its never been opened! This was a white elephant gift I had received, I honestly have never tried using it. I have friends that have really enjoyed it though!