Equipped with iSmart charging tech for safe & secure charging. Two recharge Option to gain a full recharge via either the PD 18W or normal micro USB. Supports charging for low power Bluetooth devices. Dual 18W Blazing fast charging( USB-C PD 18W, USB-A QC 18W total output 5V/3A Max). Compact size but mighty power. 100% Safety Guarantee: Protected against overcharging, over discharging, overheating and voltage surge. Choose the RAVPower Power Bank Treatment: entrusted by 100, 000+ customers For keeping their devices charged when off the grid.