I have had this device for 2+ years.  It has gone through 3 phones and is still going strong.  Stays connected to just about any phone.  Throw away the ear clip, this thing is meant to be just a small unit that holds in your ear.  It fits in your pocket with your phone and fits with sunglasses.  It is not meant to be worn all day; which should be a crime anyway, robo-ear is rude people.  Volume is great.  Only downside is when attending large conference calls during lunch it doesn't stay in while eating.  Battery is incredible, still holds a charge for a whole weekend.