Wireless Freedom - 2.4 GHz Wireless technology keeps your workspace clean and uncluttered, allowing up to 10 metre operating range Near-Silent Operation - Silent click mouse and silicone membrane keyboard switches operate up to 90% quieter volume than standard models Smooth Silicone Membrane switches - Ultimate durability, comfort, and quit typing with low-resistance silicone membrane key switches rated for over 5 million cycles Low Profile Design - Keep your desk looking neat and tidy with a thin profile of just 27 mm Ultra-quiet Mouse - Silent click witch design is up to 90% quiter than other standard mice Precise Optical Sensor - 1000 dpi optical sensor provides smooth and precise optical tracking on a wide variety of surfaces