This usb is suitable for use in a fish tank or aquarium , it does not make much noise while working It can promote the of water inside the fish tank , making a small underwater source Voltage : 5V Current : 1A Water pressure : 3L / min It is designed with usb input , it is for you to power it , you can use the to power it Body part size : app.4.3x2.3cm / 1.69x0.91in Line length : app.100cm / 39.37in You can use it for a long time , it is and has a long service life , it will not be easily damaged Water only , other accessories demo in the picture is not included Color : As the pictures shown, Manufacturer: YUGSHNKFC