GDB v1.0 uses Ethernet to connect the device to a router and uses RF to allow the device to communicate to the opener. GDB v2.0 uses WiFi to connect the device to a router and uses wires to allow the device to communicate to the opener.
In the case that the garage distance from the router is greater than the router WiFi range, GDB v2.0 can also act as a WiFi access point to allow users to communicate to the device.