Besteker Power Bank (20000mAh-Blue) High Capacity 20000mAh, powerful with long operation time Super-fast charge output (5V / 3.1A total) through dual USB ports (5V / 2.1A and 5V / 1A) allow for simultaneous charging of your iPad, iPhone, Android, and more at high speed. Input: 5V/ 0.5-2.1A. Portable charger: Perfect for long road trips, flights and daily use Two USB output interface: 1.0A interface and 2.1A interface. Charging two your devices synchronously With High performance output LED flashlight convenient at night