Features: 1)Suitable for any USB port of notebooks and ordinary computers, 2)The fish-vessel has two swithes. 3)You could chose to use AA battery or USB interface as electric source. 4)On the top of the vessel, there is a LED colorful electric light. Description: When you pour water in the Fish vessel, put the plastics fishes, and swith on the water pump, the gift or Snowman will swim across the artificial hill by the force of water flow, Pretty vividly and lovely. Product Material: ABS Packing Material:Colour Box Packing Measure:9.5*8.5*10(cm) Cartoon Measure :38*31.5*44(cm) Content Qty:48pcs G.W./N.T:14.0/13.0(kg)