For those who ask, you've already been given the link, and here's some additional palaver.
I've never liked the kind of headset which completely encloses the ear. And, the darn cords are always a pain, so that's why I started looking for something different. I just happened to be in Radio Shack to pick up a Molex connector, and ask what they had in wireless headsets. You see the result.
My first impression was not all that good. They hang as it were from the ear, and the band is in back. That part is great for me, as I wear an Aussie Outback hat to help protect my red-headed, white skin! However, positioning them to a comfortable position takes a few tries, and not everyone will like the way they hang. I've been using them for several months, and I've gotten used to the feel. Since they don't fit tight, you can still hear outside sounds. The volume is more than adequate, and can be almost deafening if turned all the way up. So you guys with diminished hearing shouldn't have any problems on that score.
You can charge them with a standard cellphone charger with the appropriate plug. In my case, it's the same one I used to charge my Bluetooth headset, but yours might be different.
Alan Applegate