Нет, нужно собственный пауэр бэнк подсоеднять - но там всё продумано для этого:
USB PORT: This USB backpack is more convenient for charging your phone. Connect your own power bank to the internal cable inside the backpack, then plug your phone's own charging cable into the outside USB port to charge your phone. Please note that you will need to have your own power bank. You can also listen to your favourite music using the hands-free headphone hole.
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USB PORT: This USB backpack is more convenient for charging your phone. Connect your own power bank to the internal cable inside the backpack, then plug your phone's own charging cable into the outside USB port to charge your phone. Please note that you will need to have your own power bank. You can also listen to your favourite music using the hands-free headphone hole.
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