The A4Tech FG2400 Air2 in black is a wireless keyboard and mouse combo designed for those who value a quiet and versatile workspace. The keyboard features a membrane switch type with ultra-slim chocolate keycaps and a high-elasticity silicon membrane with QuietKey technology, which significantly lowers typing noise from 35dB down to 14dB, making it suitable for shared offices or late-night work. To help you manage your tasks faster, it includes 12 multimedia hotkeys and four smart keys for quick actions like taking screenshots, inserting emojis, hiding apps, or locking the system. It is compatible with both Windows and Mac OS, allowing you to switch between operating systems using a simple key combination. Complementing the keyboard is a right-handed optical mouse that offers flexibility through its dual Desk and Air modes, enabling you to control multimedia content from a distance. You can adjust the sensitivity across four DPI levels up to 2000 for precise tracking, while two thumb buttons simplify web browsing by allowing you to move backward and forward. The mouse also includes an anti-sleep mode to keep your computer active and supports 16 different gestures via the right button. Both devices connect via a single USB RF receiver with a range of up to 15 meters, keeping your desk free of cables. The lightweight design is evident in the keyboard's 406g frame and the mouse's 72g build, ensuring they are easy to move around. Each component runs on a single AA battery, providing a straightforward power solution for daily use across various modern operating systems.