A:AnswerThe product is wireless/wired but the battery life is poor. The Razer software is terrible and settings you make when the mouse is plugged in do not carry over to when it is in wireless mode. The software will often not detect the mouse in either mode. Do not buy Razer products.
A:AnswerThere are two versions. The price change reflects the older wired version compared to the wireless/wired version. This change also was about a year after the initial release. I hope this helps.
