According to the company, adding an additional Eero to your network will be as simple as plugging it in. The new unit should automatically discover the existing network and join it--no troublesome configuration. The Eero system will even suggest places to put your additional router in order to get the best coverage, and it can support up to 10 separate units, letting you daisy-chain successive devices to give you the best coverage possible. And throughout it will maintain a single network name and password, meaning that you won't end up having to choose between multiple networks. It also supports Bluetooth 4.0 and Bluetooth LE, allowing connectivity to non Wi-Fi devices.