Awesome device projecting waves of rainbowYou can project a beautiful rainbow across your walls and ceiling in your room!With 5-LED and 2-modeLong arched streamline arm designA mode switch at the bottom--- Mode 1: 5-LED turned on/ off in succession--- Mode 2: turns 5-LED on/ off at onceA power on/ off button on the frontBattery slot at the bottom and a AC jack at the flankTwo ways to power this unit:--- 4 x AAA battery (not included)--- AC adapter (not included)Power saving design， light will turn off automatically after 10 minutes (But if using an AC adapter， it will remain on until the switch power button off)Wonderful accessory for a nursery or children bedroom creating a natural and calming light.Useful tips:Install correctly +， - (plus-minus pole) for avoid burning hot and leakagePlease take cells out if not in use for a long timeTo prolong battery life， switch to OFF during periods of non-usePackage Included:1 x Rainbow 5-LED Projector