[WARNING !]
Be sure to plug-in your earphone or pair your bluetooth headset with your mobile phone before starting the app.

AlgorKorea's development technology created Personal Sound Amplifier (PSA) app The Personal Sound Amplifier app produces loud volume for profound hearing loss.

RNN technology Noise Reduction based on probabilistic analysis and automatic output gain control are the main features of AlgorKorea sophisticated Personal Sound Amplifier app. All algorithms are implemented in real-time with high sound quality for hearing impairments.

The output audio level may be slightly different based on iphone’s volume settings, microphone and earphone/headset types.

Just make sure your IOS version is 12.0 or higher.