Lenovo 4X31R64351 näppäimistö ja hiiri sisältäen Office RF Wireless + Bluetooth US englanti musta

The Lenovo 4X31R64351 is a full-size wireless keyboard and mouse combo designed for office use. The keyboard uses scissor switches for a stable, comfortable typing feel and includes a dedicated Microsoft Copilot key. Connectivity options include RF wireless and Bluetooth to ensure compatibility with a variety of devices. The accompanying mouse has a 4,000 DPI sensor and an ergonomic profile crafted from bio-rubber; both devices are produced using 65% recycled materials.

Advantages

The combo offers dual connectivity (RF Wireless and Bluetooth) for flexible pairing and a full-size keyboard layout that supports efficient office work. Scissor-switch keys provide quieter, more responsive typing, while the included mouse delivers precise tracking up to 4,000 DPI. The use of recycled materials and bio-rubber components reduces environmental impact.

Suitable for

• Office work and document editing
• Home office setups
• Multi-device use where RF and Bluetooth connectivity are required
• Users who prefer full-size keyboards and ergonomic mice

Key specifications

• Device interface: RF Wireless + Bluetooth
• Keyboard form factor: Full-size (100%)
• Keyboard language: US English
• Mouse included: Yes, 4,000 DPI sensor
• Product colour: Black
• Materials: 65% recycled content; mouse made with bio-rubber

How to use

Connect the keyboard and mouse using either the RF wireless receiver or Bluetooth pairing according to your device's settings. Place the keyboard on a flat surface at a comfortable typing height and use the scissor-switch keys normally for text entry. Adjust pointer speed in your operating system if needed to match the mouse’s 4,000 DPI sensitivity. Replace or recharge batteries as indicated by your device’s power indicators.

Recommendations

For stable multi-device workflows, reserve the RF receiver for desktop connection and use Bluetooth for mobile or secondary devices. Keep the mouse and keyboard clean and dry; avoid exposing the bio-rubber finish to solvents or abrasive cleaners to maintain material integrity.