StarTech.com Wireless Infrared IR Remote Extender - Up to 115 ft - extender

For true multimedia versatility, IREXT allows you to extend remote control of devices at distances of up to 35m (115ft.), using a radio frequency that can operate through walls, doors, and around corners, etc. Now, you can control your A/V devices from greater distances or even from another room, allowing added configuration versatility for multi-room or outdoor applications, without having to move within range of your remote controlled device.

Unlike ordinary remote controls which are only effective in close range, the IREXT uses a radio frequency which can operate through walls, doors, and around corners, etc.