☆ Bluetooth Earphone Cable Transfer: some bluetooth earphone cables do not have 0.78 groove pins,you can use this adapter to convert 0.78 flat head pins to 0.78 groove pins.
☆ Wired Earphone Cable Transfer:The 0.78 flat head pin can be converted into a more versatile 0.78 grooved pin through this product,so as to fit more earphone sockets.
☆ Earphone Socket Protection:use this adapter to be fixed on the earphone socket,instead of the earphone cable pin being in direct contact with the earphone socket,prolonging the service life of the earphone socket effectively.
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