Backpack USB 2.0 & Audio 3.5mm Charging Cable Practical Convenient Outdoor Travel Camping External This product is installed in the backpack inside, for connecting the charge treasure & Audio
One Side: Male USB + 3.5mm
The Other Side: mount USB female + + 3.5mm Female
Cable length about: 0.5M
It comes with USB/Audio function, offers a convenient charging for your electronic devices.
The product does not include the backpack in the picture.