Infrared HDMI IR Extender can control your IR remote controlled devices in closet or in other rooms. | This IR Repeater supports IR frequency from 20 kHz to 60 kHz which covers nearly all the devices. | Power Free. No Power Adapter Necessary (Uses power over HDMI Cable from HDMI source unit) | Control: To choose the CEC/IR extends function by manual ( it needs to put the two IR Adapter switch to IR status). | WHAT WE CARE – Our biggest concern isn't with earnings or profits; It's with customers'experiences purchasing and using our products. We want satisfied customers and to develop trust in the Gefone brand. Simply contact us if you have issues with your HDMI IR Extender/Repeater.