(Based on Use in Commerce) [ Apparatus for transmission of communication; Burglar alarms; Cabinets for loudspeakers; Chargers for electric batteries; Computer peripheral devices; Earphones; Eyeglasses; Headphones; Horns for loudspeakers; ] Microphones; [ Multimedia projectors; Pedometers; Portable media players; Record players; Sound transmitting apparatus; Speaking tubes; Transmitters of electronic signals; Educational apparatus, namely, manipulative blocks used as teaching aids for the visu...