The GP15 power bank from Silicon Power offers even more power to charge almost any smartphone up to 2-4 times. Made with superior materials and high-quality construction, this power bank is extremely durable and comfortable to hold thanks to its ergonomic shape. The GP15 features 2 USB Type A ports for charging two devices simultaneously. Features: - 10,000 mAh capacity provides 2-4 full charging cycles for almost any smartphone - 2 USB Type A outputs charge up to 2 devices simultaneously - Dual input (Micro-USB and Type-C) for more convenient charging options - Ergonomic and sleek design - LED indicator displays battery level with the press of a button, also works as an 'alarm clock' for Apple iPhone and iPad - smartSHIELD technology provides various protections such as high input and output voltage protection, input and output current protection, automatic charge current adjustment, input and output short-circuit protection, device overcharge protection, battery over-discharge protection, input current regulation, static resistance, and fire resistance - High-quality lithium polymer battery is safer, thinner, and provides more efficient charging - Includes 1 USB Type A to Type C cable - Safe for air travel - Product liability insurance up to $2 million