1. Tap to return to previous screen.2. Alexa buttonTap to activate AVS (Alexa Voice Service).⇒ Amazon Alexa3. Tap to take a snapshot on the current view on the screen.4. Slide to increase/decrease the speaker volume of Symbio.5. Siren buttonTap to sound a siren-like sound.When you want to start, tap this button and then tap OK on the next screen.Tap this button again to stop the sound.6. Video Rec buttonTap to record/stop Video Rec of Symbio.ImportantTo use this function, you need to purchase an account service from Service option on theSetting Manager screen.⇒ Setting Manager Screen