Fujitsu S26381-K257-L120 is a wireless keyboard and mouse set that provides a secure and efficient computing experience. With its 2.4 GHz wireless technology and AES 128-bit encryption, it ensures data transmission is protected. The keyboard features a numeric keypad for easy data entry, while the mouse offers adjustable resolution for precise cursor control. Both devices have a long battery life, indicated by the battery status LED, and include a power-saving mode to extend usage time. The set is compatible with Windows and Mac operating systems.