THE ESSENTIAL GAMING MOUSE. For more than a decade, the Razer DeathAdder line has been a mainstay in the global esports arena. It has garnered a reputation for reliability that gamers swear by due to its proven durability and ergonomics. Now, we’re making it even more accessible with its latest successor - the Razer DeathAdder Essential. Its 6400 dpi optical sensor ensures fast and accurate tracking, and it has five buttons that can be programmed for instant access to commonly used functions. The Razer DeathAdder Essential gaming mouse's ergonomic form provides comfort for use during long campaigns without impacting performance.