The Shark ION Rocket provides floor-to-ceiling versatility with cord-free convenience. Powered by removable, rechargeable ION Power Pack lithium-ion batteries with flexible charging options to charge when and where you need it. ION Power Pack - Removable, rechargeable lithium-ion battery. Upgradeable Runtime - Vacuum while storing a second battery (sold separately). Floor-To-Ceiling Versatility - Easily converts to a handheld vacuum for above floor cleaning, car cleaning, and more. Smart Response Technology -Intelligently adapts to the settings you choose for enhanced performance. Purple