What are high fidelity headphones?
The main performance of IEC 581-10 high fidelity earphone is as follows:The frequency response is not less than 50 Hz to 12500 Hz, and the allowable error of typical frequency response is ± 3 dB;The difference between the frequency response curves of two earphones for dual channel (such as stereo) c
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Q:How do I care for my jewelry?
In general, we recommend that you remove your jewelry before engaging in activities that may damage it, and be careful not to bump it to avoid imprints and scratches of different shades. Please avoid exposing your jewelry to humidity, high temperature and sudden temperature changes to delay the natural oxidation effect. Get in the habit of removing jewelry before washing your hands, and also remove jewelry before sauna or steam bath.