What's in the package: 1 X remote control , no battery and instructions includedit will work straight away when new batteries inserted●Do not leave the remote in an extremely hot or humid place.●Do not use a new battery with an old one.●Do not expose the remote sensor to direct sunlight or lighting apparatuses. Doing so may cause a malfunction.●If you don't use the remote for an extended period of time, remove the batteries to avoid possible damage from battery leakage and corrosion.