DOUBLE AIR COMPRESSION DRIVER

Headphones, earphones, apparatus for recording, transmission or reproduction of sound or images, data processing equipment and computers, amplifiers, audio receivers, audio disc players, audio disc recorders, video disc players, video disc recorders, loudspeakers, high density disc (HDD) players, high density disc (HDD) recorders, integrated circuit (IC) memory players, integrated circuit (IC) memory recorders, solid state and flash memory players and recorders, CD players, CD recorders, DVD players, DVD recorders, television receivers, radio receivers, radio transmitters, accessories for all of the aforementioned audio apparatus and video apparatus, namely, straps and carrying cases; computers; accessories for computers, namely, carrying cases; computer software programs for mobile phone or Portable Data Assistant for use in measuring biometric parameter, playing games, checking stocks; computer software programs for operating audio apparatus and video apparatus