The headset works great and small rubber strips allow good to keep écouteurs.Il are several tip size for oreilles.L'oreillette works bluetooth 4.0. This saves the battery from the aureillette and also that of téléphone.Par against, you have the phone also runs on Bluetooth 4.0 if there are significant risks déconnexion.La sound quality is bonne.L'oreillette is compatible APTX (a new format which greatly improves the sound quality), which is more if your phone supports this format. Otherwise, the headset still works but this sonore.Enfin improvement, autonomy is very good.
