The listing, New GX-336 USB Computer Vacuum - Free US Shipping has ended.
I'll be honest, this is not of very good quality, but it is sealed and new :-). I think you might give this to someone you don't like ha ha.
There is no filter I think so the dust you suck up from the keyboard gets blown back in your face or at least out the sides. Anyway everybody has to get one of these gadgets as a gift at some point in their life. This is your opportunity to provide that opportunity for someone else. Good speed to you. (Am I being sardonic?)
It's not the exact model shown in the picture but very close. I guess this lot is the unimproved version.
"USB Mini Vacuum for computers clean your Pc or Notebook from dirt and dust"
Free US Shipping.