Your Duo 1500, Olympia 2100 or Titan 4000 will actively look for a wireless remote while connected to battery power. Once successfully paired, the light will stop looking for a remote.
To prevent interference from other remotes, pair each light with their remote one-by-one while the other lights are disconnected from their batteries.
If using a helmet and handlebar light combo, we recommend pairing both lights to one remote to simultaneously control them. Alternatively you may use a remote for each light.