Description : Creative design , multi - functions , and reliable quality . Mini tank with running water ( recirculation ). The water stored in the tank can be running circularly that fresh air can be provided for the fishes living in the tank . Hold about 1 . 5L of water . Come with decorative pebbles , an artificial plant , and a USB connector . Adjustable overhead LED light and multicolor LED interior lights under water . 2 switches are used for turning on / off the LED light and switching the water pump on / off . 6 modes of tranquil nature sounds , like sounds of frogs , sounds of bird , sunds of water , etc . Backlighting LCD display is featured with alarm clock , calendar , time , date , temperature , and snooze . Dual compartment desk organizer or pen holder for setting pens , rulers , etc . A great unique and unusual gift for your friends . Specification : Material : Plastic Batteries : 3 * AA batteries ( not included ) for LCD USB Power : DC 5V for the tank &# 39 ; s pump and lighting LED light : 6 white LEDs and 2 colour - changing LEDs LCD display : Clock , Calendar , Alarm , Temperature Size : Approx . 24 ( L ) x 10 ( W ) x 19 ( H ) cm / 9 . 45x 3 . 94x 7 . 48inch Package Includes : 1x USB Desktop Aquarium Tank 1x USB Cable 1x Pack of Pebbles 1x User Manual (2 Pack)