Many relaxation or meditation techniques require you to do something - concentrate on your thoughts or on your breath or follow a specific breathing pattern. With VaYou you don't need to do anything. Just follow the flow. VaYou is the world's first dynamic biofeedback sound machine for your smartphone. It mirrors your breathing with sound. Every inhale and exhale creates a sound flow reflecting you and your current state of being. You can use it to be more aware of your breathing and breathe deeper or follow a breathing pattern, but you don't have to. Simply listening to the sound flow you generate will have a positive impact on your body and your mind. It will help you to relax, relief stress or sleep better. Get into "flow-breathing" and enjoy a balancing positive effect on your body and mind! bio feedback: Unlike other bio feedback devices VaYou provides a very direct and customizable response - without the need to intellectually "understand" it - just listen to the sound flow of your choice! dynamic: Evidence shows that your breathing is deeply linked to your well-being. VaYou dynamically creates a sound flow which exactly represents your breathing - it's not just playing prerecorded sounds for "inhale" and "exhale". sound: While sound itself has a profound impact on your body and mind it is as well an easy way to follow for breath pacing without the need to look at the screen. You can set your breathing pattern and VaYou creates the pace for you. flow: The immediate and very smooth and instant sound feedback allows you to just "go with the flow" and enjoy a very balancing experience without the need to do anything specific.