Expecting to meet you in HK Electronic Fair!
How to judge the sound qualityLook at the sound material work and sealing There are also major audio generators
The most flammable black technology nowadays - the invisible speaker, originated from a failed experiment by the British DERA (Defense Assessment and Research Agency) in the 1890s Scientists are studying to reduce the internal noise of military aircraft,
In the crowded modern life, people long for the return of the soul When all the desires are settled, they fin
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