Lenovo Professional Wireless Rechargeable Keyboard & Mouse Combo

Overview

The Lenovo 4X31K03931 is a professional wireless keyboard and mouse combo designed to enhance everyday computing with quiet, precise input and long-lasting rechargeable power. The full-size keyboard features scissor switch keys for a soft and accurate typing experience, while the mouse offers an adjustable sensor up to 4000 DPI for detailed control across various tasks. Both devices connect via a single 2.4 GHz dongle or Bluetooth, allowing seamless switching between up to three devices, making this set well suited for multitasking professionals and home office users.

Key features

• Wireless keyboard and mouse that recharge via USB-C, eliminating the need for disposable batteries and reducing interruptions.
• Ability to switch effortlessly among three paired devices using either the 2.4 GHz dongle or Bluetooth connection, supporting flexible workflows.
• Keyboard uses quiet scissor switch keys that reduce typing noise, ideal for shared offices, classrooms, or late-night work sessions.
• Mouse sensor adjustable up to 4000 DPI, allowing precise cursor control for detailed editing or faster movement for general navigation.
• Eight programmable mouse buttons enable customization of shortcuts to speed up frequent commands and improve productivity.
• AES128 encryption secures every keystroke and mouse click, protecting sensitive information during use.
• Constructed with 65 percent recycled materials, supporting sustainability efforts by lowering environmental impact.
• Internal batteries provide up to three months of use on a full charge, minimizing downtime and the hassle of frequent recharging.
• Mouse shell made from bio-rubber offers a comfortable grip for extended use without fatigue.

Key specs

• Wireless connectivity: 2.4 GHz dongle and Bluetooth
• Mouse sensor DPI: adjustable up to 4000 DPI
• Keyboard keys: scissor switch mechanism
• Battery life: up to 3 months per full charge
• Charging port: USB-C for both keyboard and mouse
• Material composition: 65% recycled materials
• Security: AES128 encryption for keystrokes and clicks
• Programmable mouse buttons: 8

Connectivity and compatibility

This combo supports both 2.4 GHz wireless and Bluetooth connections, allowing it to pair with a wide range of devices including computers, tablets, and smartphones. The ability to switch between three devices quickly makes it a versatile choice for users who work across multiple platforms or need to manage different systems without changing peripherals.

• Single USB-C rechargeable dongle for wireless connection
• Bluetooth pairing for additional device compatibility
• Supports up to three devices simultaneously for easy switching

Designed for comfortable and sustainable use

The keyboard’s quiet scissor switches reduce noise, making it suitable for environments where minimal disruption is important. The mouse’s bio-rubber shell enhances comfort during long sessions, while the rechargeable batteries and recycled materials align with eco-conscious practices. This combination fits well in professional settings that value both performance and environmental responsibility.