Features This LED table aquarium lamp with two artificial jellyfishes that provide a fancy atmosphere like real jellyfishes. With 5 colors change effect. Great gifts for family and friends. Immerse yourself in the peace and calm of the ocean, which helps reduce stress and anxiety. Perfect for children, adults and seniors with special needs, including dementia, ADHD and autism. May help improve mood and well-being. Suitable for home office, bedroom or living room, bring simulated marine life and colorful LED lighting into any room. Package Including -1 x Jellyfish Night Light -1 x USB cable -1 x user manual Note: if the jellyfish does not swim, add more detergent. How to use? 1. Need 5V plug or 3*AA batteries. 2. Pour half of the clean water into the aquarium before use, shake it a few times, and pour it out to clean the aquarium's impurities. 3. Plug in the USB cable and pour clean water again. The surface of the water is about one centimeter away from the mouth of the bottle. Add 3-6 drops of detergent into the water. 4. After smoothing the tentacles of the jellyfish, put them in the water and cover them. Just turn on the switch. Note: When used for the first time, there will be a lot of bubbles on the surface of the jellyfish, which may cause the jellyfish to not float smoothly. After a period of time, after the bubbles disappear, it will swim normally or you can manually remove the bubbles on the surface of the jellyfish.