This 4K -compatible TO AHD Converter allows you to seamlessly convert -compatible signal to AHD monitor. It is widely used for shopping malls, home monitoring, high-definition monitoring, elevator monitoring,traffic monitoring and so on. Note: this converter transmit video only,no audio. Operation controls and function: 1: Choose the -compatible source devices output channel as the output format. 2: Power on the converter, the LED will be red. 3: If the input source -compatible resolution is compliant to the resolution AHD display supported,AHD signal can be output . 4: The switch can change the AHD output as 720P 30HZ/25HZ or 1080P 30HZ/25HZ . Power Adapter:DC USB 5V/1A AHD Ouput resolutions:720P@25Hz,1080P@25Hz,720P@30Hz,1080P@30Hz -compatible In resolutions:480P,720P,1080P,4K30,4K60 Impedance:75ohm Colour:Gray Material:Metal Package Contents: 1 * 4K -compatible TO AHD Converter 1 * USB power cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.