Work faster and more comfortable with the RollerMouse Red Ultimate Ergonomic Mouse. Designed with the human body in mind, this unique take on a computer mouse challenges the norms and redefines how humans interact with computers. Sitting in front of your keyboard, the RollerMouse Red uses a bar just below your space bar to roll and glide. This gives you precision control and reduces your required range of motion. In addition, this innovative mouse relieves pain and encourages healthy posture while you work. The RollerMouse Red comes with programmable shortcut buttons, 10 different DPI settings (800-2400), and boasts a battery that can last up to 3 months before charging. Between its revolutionary design and unique features, the RollerMouse Red is the total package in productivity and comfort.