Guardzilla GZ502B All-In-One Video Security System (Black) Discreet surveillance, live video monitoring from your smartphone. For indoor use only Motion detection triggers 100dB siren Smartphone alerts via email text or push notification upon motion detection Infrared night vision for 24x7 monitoring and security. Communicate through the device with 2 way audio ** VERY IMPORTANT** Please Note: Kindly refer the Instructional Video & the User Manual before use which is very essential.