The 3 Systems Wireless Keyboard with BoriYuan Case is a versatile and portable keyboard designed for use with iOS, Android, and Windows systems. With a sleek black design and QWERTY layout, this keyboard offers wireless connectivity via Bluetooth, making it convenient for use with a variety of devices. The included case adds an extra layer of portability, allowing users to easily take the keyboard on-the-go. The English keyboard language ensures universal usability, while the brand's origin in China guarantees quality and reliability.