Product features:
1) lightning interface, there is an insert automatic up
grade chip in the earphone, no need to worry about the upgrade issues about Apple version;
2) After connecting with iPhone 7's Bluetooth, you can play t

he Next / Previous numbers, Vlume, Pause, Call and other functions.
3) imported chips with lossless of digital sound quality;
4) Ultra-thin membrane copper ring horn, achieves subwoofer effect.
Customer Questions and answers :
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