Warm Volcano Lava Lamp: The lava lamps for kids uses the design of the volcano and small red balls to simulate the scene of a volcanic eruption, plus the red light to create a warm atmosphere for you.The soft red light of the kids night light will not make people feel dazzling even at night. Cool Decoration and Get Relax: On your desk,the red volcano lamp will be a very cool decoration sensory lamp.With the touch of a button,those little red balls erupt continuously to catch your eyes and follow your messy thoughts due to work or study to be quickly smoothed, you can get a moment of inner peace and relaxation. Convenient Power Supply: The boys bedroom lamp adopt USB cable (included) and 3 AA batteries (not included) power supply, which is durable and safe to use.There are 3 battery slots under the sensory lights base.You can either put the USB cable in the mobile power supply, computer and other USB ports you want to plug in. Excellent Choice of Gifts: The volcano lava lamp is suitable for both kids and adulst,is an ideal gift for Christmas, birthdays or housewarming to your lover,kids,family and friends.The lava lamps can be placed in the living room and office as decoration lamps, placed in the bedroom as sensory light,night light,bedside lamp and sleep lamp. High Quality Shopping Experience: Add water into the water tank of this volcano lava lamps, and you need to add 4-5 ml of dish soap into the water to reach the best effect.We are committed to providing you with a good shopping experience, if you have any dissatisfaction with this lava lamp, please feel free to contact us.