This rainbow flashlight requires 3 AAA batteries, and if you have light all night, which my daughter wants, then the battery life is only a few days. From there you can use the included cables and connect. The on/off switch is located on the underside of the round white base. The rainbow aspect is well done thanks to the way it changes colors - it looks quite expensive and brightens up the room. Easy to use Well made Looks expensive Nice and bright Fair price
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