Back when I had a phone that took the 2.5 mil plug this was the headset I used and loved. No idea where I got the first one, but when I lost that one I bought 3 more from amazon. I loved this headset for ease of slipping on, and was loud enough that I could hear even while driving, and the mic was such that I could be heard and understood as well. Unfortunately these don't work with an iphone so I distributed them to friends with older cell phones, and they loved them too!