It as a high quality batteries, safe and reliable ,stable performance with a smart chip top circuit and speed experience. Its an international standard USB interface ,suitable for most USB devices on the market, it as an in built high efficiency charge control IC, stable and output current. This power bank has a Seven composite protection device , its safe and secure. It as an intelligent cooling system, effectively releases heat to extend the service life. Its shell is made of fully automated process and it feels comfortable. Quboo Power Bank 10000 its through the aging test to ensure product quality. It as two(2) USB output, and a type -C micro double input for double charging.