【Simulated Aquarium】This is a simulated desktop aquarium mood light, the LED colors can be changed smoothly for your mood, you can see the artificial jellyfish swimming vividly 【Easy to use】This mini jellyfish night light is easy to use, it is powered by 3 AA batteries or USB input, worthy of your choice 【Colorful colors】This jellyfish night light colorful mood can automatically change colors when turned on, you can also select a fixed color according to your mood as you like 【Best Gift】Whether you put this lovely mini aquarium light to decorate your house, or send it as a gift to your friends, you or your friends will not feel lonely anymore, because the night light has the soft and gentle light that will ease your mind 【Package included : 1 tank; 3 Acalephs; 1 USB cable; 1 Manual Instruction