Air quality measurement apparatus, namely, particle counters; Amplifiers; Bags adapted for laptops; Batteries; Battery chargers; Cameras; Car video recorders; Cases for music, audio and related electronic equipment, namely, cases for audio tuners, audio receivers, amplifiers, tape players, compact disc players, MP3 controllers/players, audio mixers, audio speakers in the nature of music studio monitors, microphones, audio speakers, compact discs, audio tapes, portable computers, antennas, pho...