Insignia Portable Power 12000mah build-in capacity

Keep extra battery power handy with this two-port Insignia USB power bank. Its 12,000 mAh Built-in Cell Capacity lets you charge a smartphone and a tablet. The 2.1-amp total output of this Insignia USB power bank provides quick charging for two devices at once. Performance will vary based on settings and environmental conditions, and will decrease over time and use.