Razer Viper Ultimate wireless gaming mouse. This is an authentic product purchased from the Razer store in Akihabara. Everything is included except for the limited edition stickers. It has been about 3 years since I purchased it, so it is no longer covered by the official support warranty. The sides of the grip have been worn down, but it works without any problems, so please rest assured. Please note that returns and price negotiations will not be accepted. This is a rare product that has been discontinued, so please consider purchasing it.