Я купил наушники Razer Kraken x lite и столкнулся с проблемой, что в комплекте не было кода активации для объемного звучания 7.1, а без этого кода наушники не работают.

This translate as:
I bought Razer Kraken x lite headphones and ran into the problem that they didn't come with an activation code for 7.1 surround sound, and without that code the headphones don't work.

Hello leksez001,

I’m here to help. I’d like to know if your purchase it brandnew? You can try request a new activation code here. I hope this helps. If you have any other concerns, feel free to send me a PM with your device serial number and let's continue this conversation in English so I can better assist you. I hope to hear from you soon.