All of our products have the serial number located directly on the product itself. The serial number is needed for processing warranty claims. Here is where you can find the serial number on the device:
Arctis Models:
Inside Headband Near Earcup
Please note, some models will have a QR code in additon to the serial number. This may be located above or in front of the serial number. 
Arctis 1 / Arctis 1 Wireless:
Top of the earcup
Siberia 800:
Inside Headband Near the Earcup
Siberia 840:
Bottom of the Wireless Transmitter
Siberia 650:
Inside LEFT OUTER Ear Plate
Other Headsets:
Inside Headband Near the Earcup
Keyboards:
Bottom of the Device
Mouses:
Bottom of the Device
Please note, some models will have a QR code in additon to or in place of the serial number. This may be located above or in front of the serial number.
Controllers:
Bottom of the Device OR Inside the Battery Cover
