Launching 'BioShock Infinite,' for example, will give you access to a different set of customized buttons and sensitivities than opening 'Batman: Arkham City.' Since Razer touts the DeathAdder as a genre-agnostic mouse, it lets users link custom profiles to individual games. One of the DeathAdder's best features is also one of its most inconsistent. Programming macros and mapping them to buttons is intuitive and works well. This is useful for gamers who utilize specific sequences of abilities in MMOs or want to select a certain structure and pump out a certain complement of units in an RTS. Users can also program macros - long sequences of buttons with specific timed intervals - to these buttons. These commands can be anything from keyboard letters or numbers - useful for hot keys in real-time strategy (RTS) or massively multiplayer online (MMO) games - to volume control. The Synapse software makes it extremely easy to select commands for the two extra buttons. Of the mouse's six buttons, users can program five the left mouse button is set in stone. By default, the DeathAdder displays a green scroll-wheel light and pulsing logo, but these can be distracting if they're not disabled. Users can set up dozens of individual profiles, each with different commands for extra buttons, dots-per-inch (DPI) sensitivities and lighting options. This software is not included in the mouse's packaging, and installing it manually from the Razer website, while not much of a hassle, could have been more streamlined. The mouse functions via the Razer Synapse driver software. For a relatively simple gaming mouse, the DeathAdder boasts a robust feature set.

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