Some designated equipment is used in the production of Smartex . It will be tested under test instruments: universal meter, internal resistance tester, and specific cell tester. The product has been certified under CE and RoHS
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The development of Smartex has adopted many high tech. They are mainly electronic information technology, automatic control theory, and microtechnology. It's been proved that the ultra-high voltage can reach 750V
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OEKO-TEX has tested Smartex for more than 300 chemicals, and it was found to have harmful levels of none of them. This earned this product the STANDARD 100 certification. With an advanced aluminum E-cap, it has better electrical conductivity
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Smartex has to go through a series of electrical tests. They include interference tests, such as static, harmonic wave, and voltage fluctuation tests. The product is extremely miniaturized, occupying little space
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Customers can be assured of the quality of Smartex . This product will go through laboratory testing, field mock-up, and field testing for workmanship quality. It's been proved that the ultra-high voltage can reach 750V
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The earmuffs are made of high-quality elastic cotton, which is soft and breathable, has good sound insulation effect, and is comfortable to wear for a long time.