GREAT CAPACITY -- 10??000mAh capacity with dual USB ports can charge your smart phone up to six times?? good performance during your travel.</br>USB PORTS -- Supports dual USB charging mobile phones or tablet stimulataneously Max. 3.4A total output.</br>BATTERIES -- True 10??000mAh (2500mAh * 4) premuim battery quality to ensure stable charge and discharge performance.</br>CHARGING TECHNOLOGY -- Shinngo charging technology can take high speed and qualified & safe charging circuit design.</br>RUBBER FINISH -- Remarkable compact housing with rubber finish