The Wireless Desktop 900 is modern, comfortable, and affordable. This sleek desktop is contemporary and minimalistic. It has quiet-touch keys for a serene typing experience and a full-size mouse that provides comfortable, precise navigation. The Wireless Desktop 900 also includes Advanced Encryption Standard (AES), which is designed to help protect your information by encrypting your keystrokes. Both the keyboard and the mouse have an average battery life of 2-years. Advanced Encryption Standard (AES) 128-Bit Encryption: This keyboard features Advanced Encryption Standard (AES*) technology, which is designed to help protect your information by encrypting your keystrokes. Each keyboard is permanently paired with its receiver at the factory-no key information is ever shared over the air. Quiet-touch keys: Quiet-touch keys provide comfortable, responsive typing. Easy, reliable plug-and-play transceiver: Transceiver lets you set up in seconds and offers a reliable connection with a wireless range of up to 30-feet. Easy-access hot keys: Provide easy access to commonly used functions. Full-size mouse: Larger mouse size is designed for greater comfort and more precise navigation. 2-year average battery life: Low power consumption provides 2-year average battery life for both the keyboard and mouse based on normal usage.