2018:

E-Sound will celebrate its 30th anniversary in October.

2018:

ISO9001: 2015 certificate was acquired.

2017:

Man-machine interactive module of intelligent medical equipment and intelligent clotheshorses was developed and related patents were acquired.

2016:

Man-machine interactive module of self-balanced bikes was developed.

2015:

E-Sound Electronics Co., Ltd. was founded as a subsidiary corporation.

2012:

ISO9001: 2008 certificate was acquired.

2007:

ROHS standard certificate was acquired.

2003:

ISO9001: 2000 certificate was acquired.

2000:

Microphones and receivers were developed.

1998:

Multimedia speakers and automobile horns were developed.

1997:

Mobile phone speakers were developed.

1996:

Speakers of computers, DVDs and televisions were developed.

1995:

Ultra-thin speakers were developed.

1994:

Changzhou Duoxing Electronics Co., Ltd. was founded.

1990:

Buzzers were developed.

1989:

Changzhou Duoxing Electronic Device Factory was founded.