This personal-sized clip-on fan earned The Best rating by the Hammacher Schlemmer Institute for its efficient, quiet operation and unique features. With two speeds, the fan’s powerful motor yielded the fastest air velocity at its highest speed—37% faster than the slowest model. Yet even with a high air velocity, The Best model was still quiet enough to provide cool air flow without disturbing one’s (or a spouse’s) sleep, also making it ideal for office use without disturbing co-workers. With a tilting head that can be angled up/down and left/right, The Best model was the only one that provided the option for clipping to table edges, chairs, or shelves or sitting flat on a table or desk with its integrated stand. Plugs into AC. 12 1/4" H x 8 1/2" W x 7 1/2" D. (1 1/2 lbs.)