3 Devices with A Single Clicking: This keyboard is able to connect to 3 devices (2.4G USB-A Wireless + 2.4G USB-C Wireless + Bluetooth) at the same time. You can switch between 3 devices with a single button clicking. Detachable Palm Rest: Cushioned palm rest is detachable and you can use it to make work easier and more comfortable. Wave Design: Wave design helps to position wrists and forearms in a natural, relaxed position, yet not too radical to get used to. Broad Compatibility: Use with all four major operating systems supporting USB-A, USB-C or Bluetooth (Windows, iOS, iPad OS, Android, and Mac OS), including Computer, Desktop, PC, Laptop / iPad Pro, iPad Air, iPad, iPad Min, iPhone, Smartphone / Android Tablets, Surface etc. Package contents: Arteck HD323 Wireless Keyboard with detachable palm rest, one nano USB-A receiver, one nano USB-C receiver, USB-C charging cable, welcome guide, our 24-month warranty and friendly customer service.