Customizable Macros - The two extend buttons on the back can be programmed to press any sequence of keys automatically. Long Battery Life - The built-in rechargeable battery lasts 10 hours, which allows users to play for extended periods of time without needing a charge. Durable Design - The buttons are all rated to last over one million button presses. Phone Holder - The detachable phone holder enables users to conveniently secure their phone while gaming.