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The earphones that we using now is too difficult to distinguish between left and right sides.
If earphones are worn the right or left in the wrong way, not only affect the comfort,but also affect the earphones sound effects.The most importantly, continue for a long time can affect our health.If people use our Let's Right Earphone,they not only can immediately know right from the vision, also can distinguish by touch.
Xiamen University of Techonology
Xiamen, China
Xiamen University of Techonology
Xiamen, China
Tangming,HuJincun,WangGuokun