Lenovo 4Y41R69494 keyboard Home/Office Bluetooth US English Black, Green

The Lenovo 4Y41R69494 is a full-size Bluetooth keyboard for home and office use that combines an energy-harvesting, battery-free design with stable multi-device wireless connectivity. It features a 108-key layout with a numeric keypad, a low-profile 2.5-zone layout and plunger key switches for quiet, comfortable typing. The keyboard is made from 95% post-consumer recycled plastic and offers an emergency USB-C charging port when ambient light is insufficient.

Advantages

This Bluetooth keyboard uses ambient light energy harvesting and fast-charging super capacitors to operate without a conventional battery while maintaining low power consumption. It supports Bluetooth 5.1 and can pair with up to three devices simultaneously, includes Microsoft Swift Pair support for fast setup, and provides spill resistance and an adjustable tilt leg for ergonomic use. The full-size layout and US English keyset provide a familiar typing experience for home and office tasks.

Suitable for

• Home office and remote work
• Multi-device setups (laptops, tablets, smartphones)
• Users who prefer a full-size keyboard with numeric keypad
• Environments where quiet, low-profile typing is desired

Key specifications

• Device interface: Bluetooth 5.1
• Multi-device support: Up to 3 devices
• Energy source: Ambient light energy harvesting with SuperCap storage
• Emergency charging: Reserved USB-C port
• Keyboard form factor: Full-size (100%) with 108 keys and numeric keypad
• Key switch: Bluetooth plunger key switch
• Layout: Low-profile 2.5-zone, US English
• Design: Spill-resistant, adjustable tilt leg
• Materials: 95% post-consumer recycled plastic
• Colours: Black, Green

How to use

Place the keyboard in a well-lit area to enable ambient light energy harvesting; pairing is performed via Bluetooth 5.1 and supports Microsoft Swift Pair for quick setup. Use the device selection keys to switch between up to three connected devices. If ambient light is insufficient, connect a USB-C cable to the reserved port to provide emergency charging. Adjust the tilt leg to your preferred angle and use the full-size layout for standard typing and numeric entry.

Recommendations

For reliable operation, keep the keyboard exposed to regular ambient light during typical use and avoid prolonged storage in dark environments. Use the USB-C port only when emergency charging is required, and clean spills promptly to maintain the spill-resistant design.