联合动力有限公司

“Can you hear me” “Instead hearing, now I can see…”

“Can you hear me” “Instead hearing, now I can see…” For 50 years of invention and development of electret microphone of Bell Laboratories (1962-2012) Built-in pre-charged materials: from microphone to battery and vice versa The intrinsic cell integration concept and the material and system breakthrough after Alexander Graham Bell’s telephone and Thomas Alva Edison’s carbon button microphone made deep impacts on the industrial and business successes of modern portable telecommunications, electronics and battery energy storage.

 

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