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How To Locate Your Serial Number

February 15, 2017

If you’re registering your headphones for warranty, or filing a claim, you’re going to need your serial number. Your serial number is 12 numbers long and will begin with your headphone model number. For example, if you have Trekz Titanium, your serial number will begin with a 600; if you have Bluez 2S, your serial number will begin with a 500.

Your serial number can be found in two places: on the bottom of the headphone box, or on the warranty claim card that comes with the accessories inside the box. The serial number will not be visible on the headphones themselves.

Don’t have your serial number? Serial number already in use? Please contact our Customer Happiness Team at support@aftershokz.com.





Size Chart

Step 1

PRINT SIZING TOOL

Important: make sure your printer is scaled to 100% on a standard 8.5” x 11” page.


Step 2

Cut out the measuring tool using the dotted line as a guide.


Step 3

Hold the left side (L) behind your left ear and stretch the tool across the back of your head (toward your right ear).


Step 4

If the white section of the sizing tool is touching your right ear, choose Trekz Titanium Mini.

If the the orange section of the sizing tool is touching your right ear, choose Trekz Titanium.