Product features: wireless signal transmission: the camera signal can be transmitted wirelessly without additional wiring. Remote viewing: When you are thousands of miles away, you can also use mobile phones and computers to view the camera's shooting images. Built-in PTZ: 360 controllable rotation, the camera shooting angle is controlled by mobile phones, computers, and tablets. With recording function, image and voice can be recorded at the same time. Beautiful appearance: two classic black and white colors, combined with streamlined structure, beautiful and generous. The operation is simple, not as cumbersome as the previous monitoring system, a lot of equipment needs to be installed, as long as there is a router to transmit signals.