Daim ntawv pov thawj Patent TWS earphone testing machine Ib qho kev ntsuas suab nrov txo rau lub mloog pob ntseg wireless Ib qho khoom siv kuaj suab rau lub mloog pob ntseg Ib qho khoom siv kuaj rau lub mloog pob ntseg Lub suab tsom ntsuas ntsuas nrog kev ua haujlwm tiv thaiv poob Ib qho tshiab Multifunctional Photoelectric Measuring Instrument Multistation audio testing equipment Multi-spec xeem ntaus ntawv rau wireless earphones Kev sim tshiab teeb tsa rau lub mloog pob ntseg wireless Ib tug dual-diaphragm horn kuaj ntaus ntawv Audio Test System rau Earphone multi-chaw nres tsheb saib xyuas qhov system rau Cov Khoom Siv Suab Software Authorship Certificate KK audio analyzer software V1.0 KK suab tsom xam software V3.1 (hauv daim ntawv thov) Enterprise qualification daim ntawv pov thawj High-tech khoom daim ntawv pov thawj - suab analyzer EU CE ntawv pov thawj High-tech Enterprise Certificate ISO CERTIFICATE ISO9001 CERTIFICATE