Yes, all UniFi APs automatically form a mesh network, broadcasting the same WiFi so you can maintain connectivity while roaming between your access points.
Our APs also support wireless meshing to one another so you can eliminate dead zones without the need to run additional cabling. Simply plug your AP into an AC power outlet* within range of a nearby access point to enable setup.
Note that meshing is not available for Standalone Access Points (without UniFi).
*UniFi PoE Adapters are recommended.