I bought this product based on consumer reviews posted here. I was not impressed. This unit is too large and doesn't fit me well; I guess I need to try these things on in person. It will not stay on and moves my glasses around. I have a Motorola phone and this device will not perform all the voice commands my old Motorola device would (safety issue for me). I don't recommend this piece for someone with smaller ears, or anyone who wears glasses.