The Logitech MK545 keyboard and mouse set delivers wireless control and comfortable use. Logitech K545 keyboard features: - Quiet and precise keys - With palm rest - Tilt legs Logitech M510 features: - Ergonomic design with sleek contours and soft rubber grips with an extra wide palm rest. - Three standard buttons, programmable scroll wheel with side-to-side scrolling plus zoom for easy forward and backward internet navigation. - 2-year battery life (battery life may vary based on user and computing conditions) - Logitech Unifying receiver to easily add compatible devices - Laser tracking System requirements: - Windows PC - USB connection - Internet connection (for optional software download only) - Chrome OS