... product is suitable for computer, notebook, MP3, MP4 and other audio players, standard audio input interface configuration. ... circuit, wide range, natural sound and delicate, soft and fresh, clear and crisp, is a good tool to ... 0 hi-fi system, high frequency sound clear and transparent, full-range stereo sound 4,3.5 ... comes with USB power interface, a plug and play anytime, anywhere, perfect for laptop