The letter equals the Month (A=January, B=February…) and the number is the Year (05=2005)
A: Yes, several of our Bluetooth headsets have different size eartips (earbuds). Discovery 925, 665, 655, 650E and Voyager 855, 815 and 510. You can access our Bluetooth line of headsets through our website. Just click on your particular model and you will see a complete list of all it’s accessories, including eartips (earbuds).