Priced under ten dollars, this earpiece is extremely inexpensive. It also is exceptionally comfortable. The Omni directional microphone performs as well as one might expect. The earpiece and the ear hook combine to make this a highly usable and wearable tool.I use this to listen to PBS and NPR news stories that I download to my cell phone. Therefore, when I'm in transit I almost always have the earpiece on and it is extremely comfortable.The earpiece has had no reliability problems as the other reviewers experienced. However, at under ten dollars, it seems like it is an extremely good buy if one amortizes the purchase price across each use. Indeed, one could use the additional ear hook to make other ear pieces more comfortable.I highly recommend this product.