CA97239S
(en )
2002-03-22
Earphone/microphone
GB0030161D0
(en )
2001-01-24
Improved structure of earphone
TW508002U
(en )
2002-10-21
Improved structure of earphone
TW465895U
(en )
2001-11-21
Improved structure of under-clamped earphone microphone
TW458469U
(en )
2001-10-01
Improved structure of earphone
TW474539U
(en )
2002-01-21
Improved structure of multi-sound-channel earphone
TW491448U
(en )
2002-06-11
Improved structure of earphone
TW508007U
(en )
2002-10-21
Improved structure of microphone headset
TW474541U
(en )
2002-01-21
Improved structure of earphone microphone hanging on ear
TW468920U
(en )
2001-12-11
Structure improvement of skin-touching type microphone
TW458478U
(en )
2001-10-01
Adjustable ear-hanged earphone of microphone
TW476501U
(en )
2002-02-11
Adjustable earphone of microphone
TW484783U
(en )
2002-04-21
Sound varying structure improvement of speaker
TW502914U
(en )
2002-09-11
Improved structure of ear-hanged earphone
TW478704U
(en )
2002-03-01
Improved structure of speaker ring
TW511838U
(en )
2002-11-21
Improved structure of speaker
TW429780U
(en )
2001-04-11
Improved structure of ear candle
TW422471U
(en )
2001-02-11
Improved structure of ear-wearing microphone
TW467462U
(en )
2001-12-01
Improved connecting structure of microphone head
TW453607U
(en )
2001-09-01
High quality sound surrounding structure of earphone
TW511837U
(en )
2002-11-21
Improved structure of loudspeaker
TW449220U
(en )
2001-08-01
Improved structure of throat-vibration type microphone
TW511840U
(en )
2002-11-21
Structure of earphone function
TW458462U
(en )
2001-10-01
Improved microphone structure
TW484785U
(en )
2002-04-21
Earphone/microphone and ear-hang integrated structure