Those looking for a wired headset for their phone, is well advised with the Jabra Wave. It is like a hearing aid "after" supported the ear and therefore has a very stable fit. The earphone is an "in-ear" -Hörer, a piece of rubber so you have to push a small piece in the ear canal. That may some did not like, but it allows a very good understanding. Included are also different eartips. Only when one has to be put on fast care that the earpiece is seated properly, otherwise it may happen that you can not hear anything.
Otherwise, the communication with the headset is excellent. The supplied adapter, it also works with all my phones with 2.5 and 3.5 mm connector.
Note: The Amazon description East misleading. These are to a wired headset, charge the Description text regarding, battery level, etc. is of course nonsense and probably refers to a Bluetooth headset, it is also in a similar form of Jabra.