Alarm installations and alarms; Amplifiers; Anti-theft locks specially adapted to personal electronic devices, namely, laptops, PC tablets; Audio discs featuring audio and video content, photos; Bar code readers; Batteries; Battery chargers; Cabinets for loudspeakers; CD-ROM drives; Cell phone straps; Chargers for batteries; Chargers for electric batteries; Compact disc players; Computer peripheral devices; Distance measuring apparatus; Educational apparatus, namely, manipulative blocks used as teaching aids for the visualization of math concepts; Electric navigational instruments; Electronic regulating and control devices for the operation of light emitting diodes; Flashing safety lights; Laser discs featuring audio and video content, photos; Manometers; Measuring rules; Measuring buckets; Measuring rulers; Measuring tapes; Microphones; Optical compact discs featuring audio and video content, photos; Rechargeable batteries; Renewable battery system to provide backup power; Scanners; Tape measures; Tape recorders; Blank CD-ROMs for sound or video recording; Electric connections and connectors; Electrical plugs and sockets; Electronic warning bells; Emergency warning lights; Fire alarms; Gravity measuring instruments; Radiation-measuring instruments; Security and fire alarms; Theft alarms; Whistle alarms