The Wi-Fi WiZmote is using Wi-Fi to communicate with the lights of a single room only. For this reason, it requires to be paired to that room.
Since it is attached to a single room at a time, it cannot control both your kitchen and your bedroom at once. If you take it to another room, it will still control the room it is paired into (unless your walls are so thick they block the Wi-Fi entirely).
You do not need to point your Wi-Fi Wizmote at one light in particular, which makes it quite convenient if you just want to leave on the coffee table.
The ①, ②, ③, ④ buttons will trigger the 4 favorite modes of the room.