Lumsing Portable Charger Power Bank for Smartphones Tablets(8000mAh Li-Polymer Black) SUPER CHARGED POWER BANK: Are you tired of power banks that promise a lot but fail to deliver? At Lumsing we're transparent when it comes to what our products can do. This sleek power bank uses Grade-A Lithium-polymer batteries and premium microchips to ensure reliability and over 500 recharge cycles. Don't be without power when you need it most. FAST POWER BANK: Our advanced technology delivers the fastest possible charge up to 2.1 amps. Don't be left waiting in the dust-because the average power bank on the market only delivers up 1 amp. This power bank put out over 2 times that speed! HIGHly COMPATIBLE POWER BANK: This 8000mAh power bank with dual USB ports can simultaneously charge your iPhone, iPad, and any Android devices-at the same time! You and your friend have two different phone brands? No problem. This Power bank can handle both phones with no help on your part. PORTABLE TRAVEL CHARGER: We understand that conveniently sized power banks are not just a luxury, but a necessity. It doesn't matter how big a power bank is if you can't bring it with you. This power bank can go with you. With its compact 5.08x2.83x0.3 inch dimensions, this ultra-thin power bank is ideal for long flights, road trips and outdoor activities. It can go where you go and keep up with the demands of your busy life. WARRANTY: All Lumsing branded products have a 12 month warranty that begins on the date of purchase. If there are any product quality problems, please feel free to contact our customer service agents for help.