May. 06, 2020 ( Origin : China )
Content : feature
Hearing aid,ok for old people and hearing loss people,Sound are decoded and converted into vibration on bone not eardrum!directly received by cochlea----bypass the eardrum .No electric-Magnetic wave
It's perfectly used in the water or ...
Dec. 19, 2019 ( Origin : China )
Content : call center headset, bluetooth headset,telephone headset, office headset, DECT headset, UC headset
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