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RE: Beam Backpack - The Most Advanced Solar Power Backpack
Hi @robertt
This bag is great, I never thought I would see something similar. It helps to charge your phone in a smartphone, smart and waterproof, charge controller and USB voltage, very good specifications, I would like to have a product like this, I spend my time traveling and sometimes my phone needs charging, with this I save a little of time.
Thanks to you for reading...