[Improve Sensitivity] With this IR receiver, the remote control signal could be easier received by the TV or set-top box. [Wide Frequency] This IR receiver can receive wide frequency, which allows users no longer because of remote control receiving frequency mismatch caused by remote control is not sensitive or can not control. [USB] Support TV, set-top box with USB interface, please note that the USB port has only power function, it doesn't have data function. [Wide Compatibility] This USB IR receiver is suitable for home, hotel and other set-top boxes hidden or shared use of set-top boxes. [Service Guarantee] If you have any questions about this Infrared Remote Control Range Extend Cable, please feel free to contact us.