We installation cameras with integrated microphones and speakers for gatehouses, delivery points, and tourist leadership.

https://wiki.fc00.ru/index.php?title=From_Wired_to_Wireless:_A_Total_Guide_to_Choosing_and_Setting_Up_the_Right_Security_Video_Camera_System_70914

We install cameras with built-in microphones and speakers for gatehouses, start factors, and guest leadership.