usb mini computer vacuum clearner, good to clearn your computer USB keyboard vacuum cleanerPacking quantity: 120 pcsMaterial quality: PlasticSize:15*10*1.5cmPacking specification: 62*32*17cmCommodity packing:blister card[Product characteristic):1. inserts the usb connection not to need other power sources directly, the noise slightly, consumes the electricity to be few.Between 2. effective ...