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One head set has two earphones, and each earphone will break down after long time using. We have to buy a new headset if there’s something wrong with any one earphone. We replace the broken headphone connector with two small headset plugs to protect the earphone from being damaged. Also if there’s any problem on any one earphone, we just need to change to a new headset plug instead of buying a new headset.
Zhen Qiu, Mingxi Zhang, Zhaonan Yang, Keyu Long