How to turn the indoor HD camera audio on or off with the HomeHawk App
How to turn the indoor HD camera audio on or off with the HomeHawk App
From the HomeHawk home screen tap [ HD Camera ]. If prompted, enter
the camera’s password.
The current image is displayed. The audio switch is shown
underneath the camera image on the left.
Slide the Audio switch on the app to the desired position
while viewing live images from a single camera.
Camera audio will be heard.
Camera audio will not be heard.
Screenshots shown in this answer are from an
iPhone, using the HomeHawk App ver. 3.1.
If you are using a lower version please update the app. through
the App store.
To use with an Android device use App ver. 2.7 and higher.
Information applies to all compatible smart devices.
Settings and options may vary by camera.
Screen shots may change by app version.
This answer applies to models KX-HNC800, KX-HNC805, KX-HN1003
Camera audio will be heard. 
Camera audio will not be heard.