Really satisfied with my purchase (why I did not do it sooner !!!) Completely identical to those bought at my audiologist ..ainsi in pharmacies .... One big downside ... and the price !! On Amazon ... 20.44 (including shipping) for 60 batteries .... In my audiologist or pharmacy: 6,50 / 5,90 pour..6 batteries is between 65 and 59 to 60 batteries !! !!! How can we call it? Scam, theft ??? It is true that the "poor" health professionals gain nothing !!!! Now you know what you should do .... batteries work very well and in addition with the invoice can be reimbursed by the SS and Mutual ...