Tablets and smartphones (Apple, Robot, and Windows Phone & Babies) are limited autonomy when the use involves video. The PNY T10400 (lithium-ion) takes care of you really extend the usage time. Very compact, this volume is quite low compared to its storage capacity, so it's very easy to slip into a jeans pocket. Two USB ports (type A) for providing independent and simultaneously support two devices (2.4 A). The four blue LEDs (25% LED) inform you of the available energy, conventional charge time, however only a micro USB cord is provided (short, short) without plug for the sector. Autonomy is announced 6 possible recharges, which is nonsense because it would know beforehand the amount of absorption of the battery to be charged. However, note that the shell seems solid and is nice enough to touch. This is a good product that has a real weakness for now: for the same load capacity there cheaper, although its quality is impeccable. For the same price you can buy 16000 mAh and it is commercially formidable.