It has 7 buttons, and has a max DPI of 6400. It has customizable LEDs, and comes with wireless and wired options. It's more suitable for claw and possibly fingertip grippers.
Pro Very comfortable
Mamba has a very comfortable shape for every hand size. The materials used to build this mouse are on top of their class. The top has a layer of sweat-resistant matte plastic and the side panels are coated with some great grippy rubber as well.
The thumb buttons are quite large and comfortable even for people with large hands, they are also placed perfectly and are hard to miss.
Con Battery life is very limited
Razer advertises that the Mamba supports 20 hours of continuous gaming on a full battery charge, however, in reality it's much less than that. Real-life use and third-party benchmarks report an average battery life of 10 hours, which means that you will be charging the mouse every night if it's used for work and gaming during the day.