I received the BCube By Cubeetech Cell Phone Portable Charger, in exchange for honest review from Tomoson. I used it as a back-up charger for my phone, kindle, and kid's tablets. I also liked the sleekness of the device.
Similar to other USB portable chargers, you have to charge the device first. Once fully charged, you can use it to charge your other devices. I have not had any issues since using the product.
Next, since the company ordered the product and not me, I can not leave any packaging feedback on Amazon. Amazon's warehouse sent the Bcube with cracked packaging.
You can purchase the product on Amazon, using the link above.