We also provide Digital building intercom solutions for 11 years. We have many intercom system for the audio and video. This is the Android intercom system with tuya. We work with tuya app so we can remote to unlock on the phone. Specifications Model MK- AZZJ8A (Multi-apartments) Operating system Android 5.1.1 Screen Display 8 inch screen, 800*1280 px Camera 200W(1080P) CPU ARM Cortex-A53SMP4 Memory LPDDR3 1GB Storage EMMC 8GB (standard) expandable Color Silver/Champagne Card Type IC Card,M1,S50,13.56MHZ…