How does vivox5 voice control the camera?

Enter the mobile phone photo interface, and click the menu button-voice shutter opens.

While taking pictures, the camera records the sound of the shooting scene 15 seconds, such as background noise, scene action or picture subject words. The sound is temporarily stored in the camera so that the photographer can recognize or change it. Once confirmed, the sound information is recorded by the memory on the blank film immediately after the picture through the LED, and people can hear the sound attached to each picture.