Extra battery power comes in handy most often when you’re on the go, making big and bulky battery packs plain impractical. VINSIC solves your charging problems with its ultra-slim design, massive amounts of power, and dual-port simultaneous charging capabilities. This sleek battery pack is clearly one of the most powerful, efficient, and well-designed battery packs on the market!- Fast & Effective ChargingThe super high capacity 20000mAh power bank will conveniently solve the low power problem for your digital device while on-the-go. It comes with two USB ports which can be used to charge two devices simultaneously.-CompatibilityIt is universal fits for iPhone, iPad, iPod, Samsung devices, HTC phones, tablet PCs, digital cameras, game consoles and MP3/MP4 players, etc.-Safe to UseIt supports over- charged, over-discharged, over-voltage, over-current and short circuit protection to protect your devices from damage. The LED indicator helps you know the charging status and battery level clearly, it also can effectively avoid charging accident.-Ultra-slim designUltra-slim design and touch smoothly. With compact size and lightweight, make it an absolute must-have product in your home and for your travel.Specifications:Capacity: 20000mAhUSB Port: 2 x USB2.0Input: 5V, 2AOutput1: 5V 2.4AOutput2: 5V 2.4ADimensions: 173x120x12mm (L*W*H)