The usb aquarium desktop organizer is an aquarium for your fish, a penholder, clock, calendar and lamp! By using the included usb cable, you can provide the pump and lighting power. the water in the aquarium is filtered by a water pump. you can switch on and off the water pump and led lights separately. the backlit lcd display shows the alarmclock, time, date and temperature. the aquarium desktop organizer requires 3 x 1.5v aa batteries (not included).features- multifunction pen holder with nature sounds- multi-color interior illumination- lcd calendar with time / date / week / temperature- alarm with snooze function, countdown timer- aquarium requires 3 x 1.5v aa batteries (not included)- including usb/dc5v cable- including decorative stones and art plant- with water filter system- low voltage pumpproduct information- product: united entertainment usb aquarium desktop organizer- material: plastic, acrylic, metal- dimensions: l 24 x w 20 x h 9.5 cm- weight: 825 grams- colour: black- packaging: gift packaging- packaging dimensions: l 27.5 x w 21.2 x h 13.5 cm - packaging weight: 990 grams- brand: united entertainment