Description :   This is a stimulation aquarium, with LED color changing light in it. It can be a good choice, whether you put this beautiful mini fish tank to decorate your home. Or you send it as a gift to your friends. You will not feel lonely any more, it can accompany you when you alone at home. The night light have the soft, gentle light that will sooth your mind. Features : 1. LED colors can be changed to suit your mood. LED lighting, clear to see the way of fish swim is varied and vivid.  2. Easy to use, it is applicable to AA batteries and USB interface.  3. Automatically change colors when it is on or you can select a fixed color.  4. Night effect is more obvious, more realistic and gives people the feeling of being there. Can be a nice gift choice to your friends and family.  5. Beautiful and elegant, perfect for office desks, bedrooms, home, bars, cafes, restaurants etc. Specifications : Condition:100% Brand New Material: ABS plastic Color: As Pictures Shown Rated Voltage: 5 # AA 1.5V*3 or Transformer: (Output dc4.5v, 500mA) Rated Power: ＜1.2W Battery: 3*AA Battery(Not included) Size(L*W*H): 17*9*23cm/6.69*3.54*9.06in Weight: 625g Package Included : 1 * Tank 3 * acalephs 1 * USB Cable 1 * Manual Instruction Note :  1. Please allow 0~1 inch error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. Features LED colors:The fish tank light can change the LED color to suit your mood. With LED lighting, it is clear that the fish swim in various ways. Easy to use:The fish tank light is applicable to AA batteries and USB interface. Night effect:The night effect of the fish tank lamp is more obvious and more realistic, giving people the feeling of being immersive. It may be a good gift choice for your friends and family. Automatically change colors:The color can be changed automatically when the fish tank light is turned on, or you can choose a fixed color. Suitable for:The fish tank light is perfect for office desks, bedrooms, home, bars, cafes, restaurants etc.