They will not honour warranties
Bought the headset off Amazon and the headset worked great for around a year then suddenly stopped working. I contacted SteelSeries to request a repair under warranty and they refused to honour the warranty because a tiny sticker with a serial number had fallen off the headset even though I could provide proof of purchase and photographs of the item in my possession and the customer service rep then even pre-emptively went on to say even if I found the box they wouldn't accept any details off it as proof Thankfully Amazon's repair service have been happy to have the item sent to them for investigation under the same manufacturers warranty the manufacturer itself is refusing to honour