Visual doorbell have wifi fuction.When doorbell combined with the smartphones APP by connecting the home WIFI,your smartphone can control the doorbell(such as unlock /video intercom/taken photos,etc.),good interaction experience ,security
7 Inch HD Video Door Phone Intercom System Video and Audio Chat, Dual-way intercom Built-in microphone supports bi-directional communication . ultra-clear sound quality without any noise. Day/Night Vision The
