DA are the letters of a pair of Siemens Pure Carat 701 aids , anyone know the date they would have been made ?
THANK YOU !!
Taken from http://www.hearingpro.com.au/upload/resources/1395850394Siemens-bte-user-guide.pdf
The year of manufacture is incorporated into the serialnumber. Please note the warranty is based upon the dateof purchase, not the date of manufacture. The serial number may look similar to this sample: AY12345.The second letter of this serial number refers to the year ofmanufacture of the hearing instrument. The letters Y or Aindicate a 2011 year of manufacture.