Taken from internet:
This device eliminates dead spots and works with virtually any Wi-Fi router. View larger.
Boost Your Wi-Fi Network
Using the RE1000, you can easily boost the range of your existing wireless router and create a strong, reliable Wi-Fi signal for laptops and smartphones in your home. The RE1000 delivers a coverage area of up to 5,000 square feet by repeating and redistributing the signal from the router to eliminate dead zones.