Only works with Deco whole home Mesh Wi-Fi Plug the Add-On satellite into any outlets to easily expand mesh Wi-Fi coverage. Enjoy additional Wi-Fi coverage of up to 1, 600 sq. Ft. To eliminate weak signal areas by plugging in every Deco M3W. Multiple Deco units form a whole-home network that auto-selects the best connection as you move around your home. Parental controls limit online time and block inappropriate websites according to unique profiles created for each family member. Connectivity technology: Wi-Fi Built In