LCD Display Desktop LED Clock Lamp Light Digital Calendar Fish Tank (Black Color) Feature: ?USB power connector. ?Multifunction penholder. ?Multicolor interior lights. ?Adjustable overhead light. ?Under-gravel filtration system. ?Low voltage pump. ?LCD calendar with time and date, also with week and temperature. ?Alarm clock with snooze feature and countdown timer. ?Fashion fish tank: running water, underwater colorful light, led lamp. Product Attributes: Material: Plastic Color: Black / White Quantity: 1 Pcs Capacity: About 1.4 L Instruction Of Fish Ta nk: 1.When using the fish tank, please filled water in place, no higher than max line and no lower than min line. 2.When power on, use [MOTOR] to switch the running water and light on and off. When it is on, the water runsand light at the bottom of fish tank is on. When it is off, water stop running out from the faucet tap and color light is off. 3.Power source of the fish tank: USB/DC 5.0V. Plug in: mini USB. It suitable for cumputer USB. 4.Use 3 AA batteries for the calendar, use DC0.5V for the fish tank. 5.Please change new batteries when LCD display unclearly or volume is low. 6.Please prevent it from strong colling, shaking, moisture and insulation. 7.Please put batteries out if not use for a long time. Package Include: 1 x LCD Display Desktop Tank