Aurabeam RM-ANU159 Replacement AV Remote Control for Sony Bookshelf Audio System (RMANU159 / 149054114)

While the remote works just fine with my Sony SA CT-60 sound bar unit, the battery situation is less than intuitive. The remote ships without the battery, and without instructions. There are at least three battery types that are the same size, and would fit into the carrier. Another user was kind enough to respond to my battery question soon after I posted it. With the battery carrier removed, if you tip the opening to the light, you can just see the number printed on the circuit board, CR 2032. Another user suggested that the 2025 battery will work, but while it fits into the slot okay, it does not work. It must be a CR 2032, and then the remote works just fine.