DL manuals Audicus Hearing Aid Canto Instruction Manual Audicus Canto Instruction Manual - Serial Identification 12345678910111213141516171819202122232425262728293031323334353637383940 Page of 40 Go Download Print this page Bookmark us 33 Serial Identification You can find your serial number inside the hearing aid. If you open the battery door, you will see a series of numbers. The serial number usually begins with two alphabetical letters, e.g. PF00459. RG 00000 « ‹ Prev30313233343536Next › »