The A4TECH Fstyler FBK25 is a versatile keyboard designed to provide seamless typing across a wide range of computing devices. Its universal compatibility makes it suitable for use with Windows, Mac, Chrome OS, Android, iPad, iPhone, and more. With dual connectivity options, you can connect it via Bluetooth or 2.4G wireless frequency, offering flexibility and convenience. The keyboard features an On/Off Power Switch for easy control and Multimedia Hot Keys Access, allowing you to access 12 multimedia and internet functions with just one touch using FN+ F1 to F12. Additionally, you can lock and unlock the Fn mode by simply short pressing FN + ESC, providing enhanced functionality and customization options.