Funny and intuitive way to manage the noise level around you! You can know the noise level in decibels that is also represented by funny traffic lights. It is useful for: ♥ Teach to your children pupils to keep an appropriate level of noise ♥ ✍ Improve your work meetings environment ✍ ♪ Or even to moderate your meetings with friends ♪ ... It is free and without ads! (although you can thank me the work buying premium features if you like the App ;)