Hoover BH50010RM Linx Cordless Lithium Ion (Certified Refurbished) Linx cordless fade-free lithium-ion battery system - interchangeable battery with charger Powered Brushroll with wind Tunnel technology - transition from hard flooring to Area rugs and low Pile carpeting easily Intuitive power controls - Brushroll on/off switch positioned where it should be - right at your fingertips Fuel gauge - registers remaining battery Life Edge cleaning bristles - removes dirt up against edges