I have used this handy little dust blower in my office for about a year. It's great for removing the dust and food crumbs (don't tell my boss) that fall in between the keys on my keyboard no matter how careful I am. It's not the biggest and best but it serves my purpose and it's easy to store in my desk drawer. It runs on 4 "AA" batteries and has a pointed end for blowing into hard to reach areas. At the end of my day I just give a quick blow on everything from my keyboard, computer screen, to my printer. I've even used it to dust off the pictures on my desk. For under $10.00 it's a great little gadget and would make a nice Christmas gift for a fellow employee.