Your Bose® product serial number is a 17-character letter-number combination located on the back or bottom of the product or product component. (Note: Bose headphones and headsets use a different numerical code. See product literature for location.)
The serial number identifies the product as being yours, and helps us verify the origin of sale.
Be aware that counterfeit products often carry fake or duplicate serial numbers. Purchasing products directly from Bose or an authorized dealer is the best way to ensure you're buying a genuine Bose product covered by the Bose warranty.