Lenovo Essential Wireless Keyboard & Mouse Combo (Black)

Overview

The Lenovo 4X30M39458 is a wireless keyboard and mouse combo designed to streamline your workspace and boost productivity. It features a full-size keyboard with a numeric keypad and connects via a single nano USB-A receiver for quick, clutter-free setup. The included mouse offers a 1200 DPI optical sensor for smooth and accurate tracking, suitable for both right- and left-handed users. With up to 12 months of battery life, this combo supports extended use without frequent battery changes, making it a practical choice for home offices, classrooms, and everyday work environments.

Key features

• Wireless 2.4 GHz RF connectivity ensures stable and responsive performance without lag or dropouts
• Single nano USB receiver simplifies setup and reduces desk clutter by connecting both keyboard and mouse
• Full-size keyboard with numeric keypad enhances efficiency for data entry and document editing
• Spill-resistant keyboard design protects against accidental liquid damage, extending device longevity
• Adjustable tilt legs allow you to customize typing angle for improved comfort during long sessions
• Ambidextrous 3-button mouse supports both right- and left-handed users with precise 1200 DPI tracking
• Long battery life of up to 12 months minimizes interruptions and maintenance needs

Key specs

• Connectivity: 2.4 GHz RF wireless via nano USB-A receiver
• Keyboard layout: Full-size with numeric keypad and 2.5-zone key arrangement
• Mouse sensor: Optical, 1200 DPI
• Mouse buttons: 3 (ambidextrous design)
• Battery life: Up to 12 months for both keyboard and mouse
• Compatibility: Windows operating systems

Connectivity and compatibility

This combo uses a single nano USB-A receiver that plugs into any standard USB port, providing a reliable 2.4 GHz wireless connection. It works seamlessly with various Windows versions, allowing you to plug in and start typing or navigating without additional drivers or software. The wireless range supports flexible placement of your keyboard and mouse within a typical desk setup.

Comfort and durability

The keyboard’s spill-resistant design helps protect against accidental liquid spills, reducing the risk of damage during everyday use. Adjustable tilt legs let you find a comfortable typing angle, which can help reduce wrist strain over extended periods. The mouse’s ambidextrous shape and smooth tracking make it comfortable for users regardless of dominant hand, supporting a variety of tasks from browsing to casual gaming.

Ideal uses and environments

This wireless combo fits well in home offices, classrooms, and general workspaces where a reliable, easy-to-use keyboard and mouse are needed. Its full-size layout and numeric keypad make it suitable for users who frequently work with numbers or documents, while the long battery life and spill resistance add practical value for daily use. It is a strong choice for anyone looking to reduce cable clutter and maintain a tidy, efficient desk setup.