Features: Powerful suction can vacuum the waste hidden on the keyboard more quickly.Our computer vacuum can vacuum small objects such as cigarette ash, dust, hair, crumbs, rubber waste, small particles, but not water, make sure that small thingsare not larger than the suction nozzle This portable USB portable vacuum cleaner is small in size, can be used for computers, desktop computers and PCs.Our keyboard vacuum cleaner can be connected directly to the USB port without the need for an external power supply.Just open the vacuum cleaner and take out the sponge, then wash it with clean water, after the sponge dries, then you can use it. Technical specifications: Package weight: 225g Product size: 196 * 137 * 60mm/7.72 * 5.39 * 2.36in Power: 3.5 W Voltage: DC 5 V USB cable length: 1.8 meters Power supply: computer USB interface, USB adapter, mobile power supply, etc .... List of packages: 1 x Empty keyboard (keyboard is not included) 2x nozzle 1 x sponge