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Please complete and retain for your records
The serial and model numbers are located on the left temple.
Serial number: ___________________________________
Model number: ___________________________________
Please keep your receipt with your owner’s guide. Now is a good
time to register your Bose product. You can easily do this by
going to http://global.Bose.com/register
Model numbers
LENS TYPE NUMBER
Alto: Blue Gradient BMDL2
Alto: Mirrored Silver BMDL4
Rondo: Blue Gradient BMDL1
Rondo: Mirrored Rose Gold BMDL3
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