Smart volume controller app helps sound automatically

Smart volume controller app helps sound automatically, avoid sound too loud when just opened feels more comfortable with the sound of auto open slowly.

You are busy people often have a case, you forget to turn off your phone ring, rest assured smart volum volume opens slowly can help you feel and turn them off as quickly as possible

You are forbidden to hand phone and massive state vloume accidentally ear plugs and be assured with Smart phone will tanf8 audio volume slowly help you feel uncomfortable sounds and turn them right

Your hearing protection in the best way, to prevent the uncontrolled noise, let Smart Volume help you do it offline