Is the urea solution added to cars harmful to the human body?
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Methods for adjusting car music EQ: 1. Sound frequency bands: Adjust the proportion of each frequency band in the sound. 2. Adjusting the timbre of frequency bands: Low frequency band 21 to 200, where 63 is the bass drum, 125 is the bass; Mid frequency band: 250 to 2k, where 500 to 2k is the human voice, 4k to 5k is the instrument, 5k to 6k can significantly increase sound clarity; High frequency band 6k to 8k can make the timbre bright, 10k to 16k can enhance the treble and the gloss of the timbre. More related information is as follows: 1. Introduction: Car music EQ is short for equalizer, which is a music equalizer. After use, it can adjust different music styles, such as soft, natural, classical, rock, etc. 2. Settings: The music equalizer presets multiple tuning modes to create sound effects for playing different music, providing a good audio environment, so even non-professionals will not mess up the sound field.