The UR40 delivers digital quality sound in an ultra-lightweight design for listeners on-the-go. The UR40 features dynamic elements for a wide frequency response from 15-22,000 Hz. A 2 mil. titanium coating on its diaphragms increases the rigidity of the elements, minimizing mechanical distortion and ensuring exceedingly accurate sound reproduction. Computer-optimized neodymium iron boron rare earth magnet structures enable the UR40 to deliver greater volume, even with low-voltage portable devices.
I have had these handphones for about 4 months now. I like the complete ear coverage. They are light. The sound reproduction is great for my ears. I am not an expert in this area but I know what I like. I like the fact that they have a low range to 15 Hz. I have some material that uses this low frequency. I would like a longer cord.
Just what I was looking for...8/17/2004
A full-sized headphone that provides optimal sound quality and reduces outside noises. Also, it folds up making it very convenient for traveling. Koss produces excellent products at affordable prices (opposed to the $60-70 you will spend on a Sony or Panasonic). Great Value. I'm happy with this purchase.