3 Devices Switch with A Single Clicking: This keyboard is able to connect to 3 devices at the same time. You can switch between 3 devices with a single key clicking. Broad Compatibility: Use with all four major operating systems supporting 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 like Samsung Galaxy, Surface etc. Ultra Compact, Thin and Light: Compact size (11.12 X 4.5 X 0.24in) and light weight (12.1oz) but provides full size keys, shortcuts for comfortable typing. 6-Month Battery Life: Rechargeable lithium battery with an industry-high capacity lasts for 6 months between charges (based on 2 hours' non-stop use per day). Package contents: Arteck compact multi-device bluetooth keyboard HB305, USB-C charging cable, welcome guide, our 24-month warranty and friendly customer service.