The audio/video quality of the communication between the App and EASYKIT Wifi With Netatmo is defined by the indicator, during video communication, at the top right of the screen Normally the audio/video quality indicator is white; in case it is yellow or red you need to check the quality of your ADSL connection and the 3G/4G signal on your smartphone. Also check the streaming devices on your network as they could affect the network performance.