Lenovo a520 wears headphones, why can I hear SMS ringtones outside?

Hello, thank you for choosing Lenovo products.

I'm sorry for the inconvenience caused to you during use. Lenovo A520 can still hear the SMS ringtone from the speaker after wearing headphones. This is the design structure of A520, which is a normal phenomenon. Please understand.

For more information about the operation and skills of Lenovo A520, please refer to the link: /ProductDetail.aspx? id=2 19

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