The product is a Harman Kardon HK206 3W computer speaker system that operates at 90 Hz. It is a wired speaker system that does not come with a power adapter. This portable speaker system is designed to enhance the audio quality of your computer setup, providing a clear and crisp sound experience for your listening pleasure. With the Harman Kardon brand, you can trust that this speaker system is reliable and built to high standards of audio performance.