This application listens to sounds around your iPhone. When the sound is heard (such as snoring), iPhone and / or Apple Watch will let you know. You can set up iPhone to turn on haptic, light, sound alarms on iPhone, and sound and haptic alarms on Apple Watch. You can also adjust the microphone sensitivity and alarm duration. If it is expected that the iPhone will work for a long time with the application turned on, it is recommended to connect the power adapter.