Scissor-switch keys provide responsive, accurate and quiet typing. Includes 16 programmable keys and a dedicated Copilot key. Connects up to 4 devices through Bluetooth 5.4 and a 2.4GHz USB receiver with 128-bit AES encryption. Rechargeable battery provides up to 3 months of use per charge. Compatible with Windows, macOS and ChromeOS. Contains 41% post-consumer recycled plastic in the outer case. FSC® certified packaging. 3-year limited warranty.