Keyboard: Contoured design promotes a natural wrist position and puts keys within easy reach Detachable palm rest can be removed for a sleek, compact look Split spacebar with backspace functionality is designed to improve typing efficiency Cushioned palm rest provides support and promotes a neutral wrist position Palm lift promotes a straight, neutral wrist position. Advanced Encryption Standard (AES) 128-Bit Encryption Mouse: Windows touch tab provides easy access to the Start screen and apps 4-way touch scrolling for navigating up, down, left and right Works on virtually any surface with Blue Track Technology