Cool decibel tool!

This app works very well. Once you have a new great tool, you will find a new way to do your works better and easier. Cool! my iphone / ipad become a pro meter now! Love it! It works great as described! The user interface is just simple, as the best as a decibel tool! pretty accurate for a mobile user.

Letmepk about dB Decibel Meter PRO