The invention discloses a wireless rear-view device for autos including a camera device and a display device in which, an image sensor, an image compress-processing module, a bluetooth module, a Balun circuit, a radio frequency (RF) circuit and an antenna of the camera device are sequentially connected to transmit video signals to the antenna of the display device via radio, the antenna, a RF circuit, a balun circuit, a bluetooth module, an image decoding module and a monitor of the display device are connected in order to display video signals on the display, the keyboard is connected with the Bluetooth module to input start and control signals. The invention also discloses a method to realize this device, which includes the steps of two parts, the camera and the display device. |