You need to register them with your Razer ID account: https://razerid.razer.com/products/new

Code will be sent over the e-mail.

Hello bobi2012,

I have verified that you’ve successfully registered your Razer Kaira X to your Razer ID. Have you tried to check your spam emails? If you didn’t receive the 7.1 Surround Sound activation code within 24 hours, PM me the following information below so I can initiate a case on your behalf:

Razer ID: 
Full Name:
Phone number:
Country:

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