Tzumi PocketJuice Endurance AC - Mini Portable Smart Device Battery Pack Charger - 4,000 mAh High-Speed Single USB Port

Big Power in A Small Package: The PocketJuice Endurance AC portable charger has a 4,000 mAh capacity and will deliver up to 1.5 extra charges to your device with a high-speed USB port and 2.4-Amp output. The hidden Micro-USB charging cable built into the unit is perfect for fueling Android devices effortlessly.
Tough, Long-Lasting Endurance: The PocketJuice Endurance AC is designed to fit your life