I'm sorry but if you thinking of razor then I have nothing else to say, you need to learn about mice & technology and whats a good buy.
Feel bad for anyone who buys a razor product, getting ripped off. I've had a Steelseries Keyboard for 3 years now, no issues. I had the Steelseries Ikari laser mouse for awhile and it still works great on my laptop.
I had a razor mouse, died in 3 months.. No thanks, I like having my products lasting longer then 6 months. At least get the Logitech and get something decent.
If you look at all the PC gamers who get payed to play, most of them use Steelseries, logitech, or other brands (not razor).. Theres a reason as to why that is