Power Bank 20000mah External Battery

Output Interface: Double USB
Support Quick Charge Technology: Two-way Quick Charge
Battery Type: Li-polymer Batter
Output: 5V/2.1A
Is LED Lamp Illumination: Yes
Size:140*63*22mm
type: Emergency / Portable
outputinterface: Double USB
batterytype: Li-polymer Battery
display: LCD digital display power
feature: Compatible with all phones