BIODYNA

Electro-acoustic devices and their parts, namely, loudspeakers; loudspeaker systems primarily consisting of audio speakers; head-phones; headsets for use with computers; headsets for use with telephones and cell phones; headsets for use with portable audio players; microphones; diaphragms in the nature of acoustic membranes for speakers, microphones and electro-acoustic devices; portable digital audio players for playing music; sound or image recording apparatus; sound or image reproduction apparatus