Talentcell 6000Mah Power Bank External Battery - Ultra Thin,Brushed Aluminum Shell Portable Mobile Battery Charge For Smart Cellphone,Gold 5V/2.0A output interface; 5V/1.0A input interface. Ultra-thin brushed aluminum shell. Equipped with 1 emergency light when you are out and 4 LED to display power. Battery Type: Li-polymer battery, Li-polymer battery is more stable and safe than Li-ion battery.