Computer hardware; Notebook computers; Microphones; Speaker; Loudspeakers; Sound recording and sound reproducing apparatus and instruments; Sound reproducing apparatus; Computer chips; Integrated circuits; Sound cards; Interface cards for computer; Earphones and headphones; Wireless portable headphone set; Hands-free headphone set; Computer software for playing audio and/or video files for use in connection with hand-held computers; Computer software for playing audio and/or video, namely, co...

Semiconductors, computer chips, integrated circuits, earphones and microphones