Turn on the Wii console
Open the battery cover on the Wii Remote
Press the red SYNC button inside the battery compartment
Open the SD card slot cover on the Wii console
Press the red SYNC button on the console
Wait for the lights on the Wii Remote to stop flashing
Repeat the SYNC process for each Wii Remote
Replace the batteries if the controller will not connect
Move closer to the console and try again
Remove and reinsert the batteries, then resync the controller