Analog-to-digital converters; Converters, electric; Digital projectors; Digital to analog converters (DACs); LCD projectors; Mini beam projectors; Projection screens; Projection screens for movie films; Self-acting focussing projectors; Stereo headphones; Stetoclip hearing aid listeners; Telephone headsets; Video projectors; Wireless headphones

Education services in the nature of courses at the university level; Education services, namely, customization of undergraduate course selection based on area of interest; Education services, namely, offering co-curricular, hands-on experience in the nature of research in the field of arts, sciences and humanities to students applying knowledge and skills learned in undergraduate courses and documentation of undergraduate students' co-curricular, hands-on experience on official transcripts