"The Stone 3 is small enough to easily fit in a purse, briefcase, backpack...even in the palm of your hand. This lightweight but powerful battery is perfect for work, vacation and every day on-the-go. This extended battery contains a rechargeable 7800mAh lithium ion battery strong enough to charge your smartphone and tablet simultaneously. - This is a rechargeable 7800mAh lithium ion extended battery - Dual USB output allows for charging two devices at the same time - This battery is portable and lightweight - Compatible with Apple products and other universal Micro USB charging ports - Uses clean and reusable power"
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