Box set includes all you need for an app capable video intercom system. Answer and open your door from the on-site master or your mobile device. Connect up to 8 smartphones or tablets per system. On-site monitor ensures calls get answered or recorded. Store calls with no added fees using onboard memory. Adding a MicroSD card to the on-site monitor increase call storage. Watch recorded calls from the on-site master or on the mobile app. Large 7” touchscreen provides crisp, clear detail of your caller. The vandal resistant surface mount video door intercom faceplate is crafted using stainless steel. Video door intercom automatically activates white LED lights to see clearly at night. Replace standard doorbells to add the security of seeing and speaking with visitors.