ReTrak's Premier 2-in-1 Car Charger and Power Bank takes efficiency to another level. To charge the Power Bank, just plug it into your car's DC outlet - and then use it on-the-go for 1 full back up charge. To use it as a car charger, just push the power button to enable the pass-through charge technology. FEATURES: 2,200 mAh Power Bank delivers 1 full charge Up to 2.5x faster than other chargers Works as both a car charger and power bank Sleek, portable, and space-saving design for on-the-go mobility Retractable Micro USB cable included for compact storage Reinforced connectors prevent fraying and last 4x longer than standard cables LED light indicates when power is low Compatible with all USB devices Ultra-slim, case compatible connector ETPB2CM5