The MX Keys for Business and MX Master 3 for Business combo with palm rest. It's the ultimate key to productivity, giving users with specialised workflow needs the power to truly master what they make. Other features: - Wireless with 2 ways to connect: Logi Bolt USB receiver, Bluetooth Low Energy Wireless Technology - Rechargeable with Li-Po batteries that can be used while charging (USB Type-C charge port) - Switch between up to 3 paired computers using Easy-Switch button/keys - Logitech Flow cross-computer and OS control and file sharing - Pair up to 6 Logi Bolt products with 1 Logi Bolt receiver System requirements: Logi Bolt USB receiver Windows 10 or later macOS 10.14 or later Linux Chrome OS Wireless Bluetooth Low Energy technology Windows 10 or later macOS 10.15 or later Linux Chrome OS iPadOS 14 or later iOS 14 or later Android 8 or later