eero Beacon is half the size of an eero router but comes with the same advanced wifi technology. Simply add it to your network and plug it into a wall outlet to add 1,500 sq. ft. of coverage. You can add as many eero Beacons as you want. If there’s an outlet, there's wifi. eero Beacon comes equipped with an LED nightlight. With an ambient light sensor and automatic dimmer, it intelligently adjusts brightness depending on the time of day. You can also choose to set your own brightness schedule using the eero app.