Just the right amount of layering: Built-in ultra-short lightning cable with approximately 1.2 inches (3 cm) long and ultra-short cable that fits perfectly when charging your iPhone. Unlike most built-in cables, this cable won't let any extra cable out so you can charge it on the go and carry it smartly. Lightning Cable Length: Approx. 1.2 inches (3 cm) (from the main unit to the lightning terminal point) Approx. 2.0 inches (5 cm) optimized for iPhone charging; Lithium polymer battery that is designed with a flexible design. It has improved portability by adjusting the size of your iPhone to the perfect fit. Designed specifically for the iPhone so you don't have to worry about carrying it while charging or taking small operations. Specifications: Cells: Lithium polymer Capacity: 10,000 mAh. Input: Micro-B 5V/2A, Output: Lightning 5V/2.4A, USB-A 5V/1A. Total maximum 5V/2A. Product Size: Width 2.8 x Height 5.8 x Thickness 0.7 inches (72 x 147 x 17 mm). Product Weight: 7.6 oz (215 g). Safety Protection: Over-discharge prevention, Short circuit prevention, Output (20 cm).