Developer's DescriptionBy Mobile Apps StudioMicrophone Amplifier, main features: Wire-tapping the voice around you, providing 50 level of audio gain.Microphone Amplifier, main features:Wire-tapping the voice around you, providing 50 level of audio gain.High quality recording. (original data, Wav format)Sound oscilloscope.-To improve your experience, please plug in your headset first.- You can use this app as Audi-phone.