PhoneAudioTest

PhoneAudioTest app allows you to analyze and test your device's Speaker, Microphone, Earpiece and Headphones, to make sure everything is operating correctly.
Must have app! When you buy a new or used Smartphone: Eliminate your risk on purchase.Get your old Smartphone checked before warranty expires.
You'll be able to test the following:
• Speaker Test - This Test will help ensure that your phone's speaker works fine.
• Phone EarPiece Test - This test will help ensure that EarPiece of your phone works fine. No need to make an actual call.
• Headphone - This test will help ensure that headphone jack of your phone , left and right channel of your headphone works fine.
• Microphone - This test will help ensure that microphone of your phone works fine.
• Vibration - This test will help ensure that vibration on your phone works fine.
• Volume Buttons - This test will help ensure that +/- volume buttons on your phone works fine.