Both are fine. Each has its own characteristics. The charging treasure product with its own line is relatively few, and it is more convenient to use, because its own line is very short, it must be put together with the mobile phone charging treasure, many people run out of electricity, and can only charge while playing the mobile phone, which requires both to hold the hand, holding tired. And the wire with its own wire is easy to tear for various reasons.
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Without a line, you can choose a long charging line, you can charge the charging treasure in your pocket, the mobile phone is charged, and it is more convenient to move and charge.
Both are fine. Each has its own characteristics. The charging treasure product with its own line is relatively few, and it is more convenient to use, because its own line is very short, it must be put together with the mobile phone charging treasure, many people run out of electricity, and can only charge while playing the mobile phone, which requires both to hold the hand, holding tired. And the wire with its own wire is easy to tear for various reasons. Without a line, you can choose a long charging line, you can charge the charging treasure in your pocket, the mobile phone is charged, and it is more convenient to move and charge.