quick mode switch at the back, no need for combination buttons to power on. extra 2 pro-level back buttons which can be easily remapped or profiled via ultimate software. a dedicated profile button with corresponding indicator lights. up to 3 sets of profiles can be saved in the controller.optimized grips to be more comfortable. it gives you elite control over every piece of your controller: customize button mapping, adjust stick & trigger sensitivity, vibration control and create macros with any button combination. create controller profiles and switch between them at any time. a quick mapping button for buttons you would like to swap. with ultimate app on mobile, you can customize your controller in game play..20 hour rechargeable battery pack.