These are a slightly used pair of Bose open ear buds. These wonderful buds clip to the outside of the ear and are very comfortable. Battery life for the few weeks I used them was around 8 hours each. I have issues wearing in ear buds and that was the reason I purchased these. I hate to get rid of them, but in the loud environment I work in, these were not cutting it. Let me state, it is a very loud workplace. Normal use of these is amazing and there is not as much noise for others when you use them. It is so nice that these do not enter the ear canal and despite the high price of new, these are a steal.