Usage Tips: generation electric compressed air duster redesigned its air blowing nozzle and updated its blowing power. Furthermore, there has a mini brush which can put on the blowing nozzle to help you brush the sticky dust while blowing. Besides, electric air duster allows you can use it blow the dust at any angle and theres no vapor spray out, its non-static feature makes it be a nice tool to clean all kinds of electronics. COMPUTER and KEYBOARD VACUUM keyboard vacuum cleaner especially suitable to clean computer tower, laptop keys, keyboard crevice and other electronics. There also has a mini brush which can put on flat nozzle to help you brush away the stubborn dust, soft bristles can brush your computer fans or electronics gently without any scratch or damage while vacuuming. 3-IN-1 ELECTRIC AIR DUSTER and VACUUM CLEANER Buying one compressed electric air duster equivalent of buying a compressed computer air duster, a mini vacuum cleaner, an air blower, uncountable air cans and cleaning gel at a time. No more environment polluted, makes two cleaning ways together which can saves you lots of money in the long run. RECHARGEABLE AIR DUSTER cordless compressed air duster designed with 6000mAh rechargeable large capacity battery which allows it can be running 30 minutes at a time. Lightweight 0.7lb with cordless design makes you can hold this electric air duster just by one hand and convenient carry to wherever you go.