ZMI Ultra Slim 10000mAh Portable High-Speed Charging Technology Power Charge for iPhone, iPad, Samsung - White Top rated lithium ion polymer batteries (same batteries used in Apple products) with 3.5x charge for a iPhone 6 Compact 0.4" slim design with specially textured surface for easy grip and anti-slip technology Higher than 93% energy efficiency achieved with Texas Instrument chip which outputs about 500mAh more power than comparable charger Intelligent Temperature Control with real time monitoring of the batterys temperature ensures automatic shutoff in case of overheating Fireproof outer shell made from ABS+PC material with V0 fire safety rating together with interior anti-shatter design