There is a conflict, buy a double mouth to solve it
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You choose the kind of USB charging port with two jacks can be, that is, the output end needs to have two jacks, one to provide the driving recorder, one to provide the mobile phone charging, so it can be, because the output voltage of the two jacks is the same, it does not affect it.
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If you choose the one with only one jack, then you will not be able to charge the car recorder and the phone at the same time, after all, there is only one jack, there is no place to plug the car recorder to charge the phone, and there is no place to plug the phone to charge the phone.