100% brand new and high qualityFeatures:20000mAh/50000mAh Portable Power BankConvenient to provides power for your phone or some other electronic devices as back up power.Safe and reliable，easily use，very suitable for travel and outdoor activities.Three output ports，convenient for you to charge for 3 devices at the same time，or share your backup power with your friends.Ultra slim and ultra light， easy to carry.Built in Dual USB port， with LED Flashlight .Long service life， more than 800 times the charging and discharging.The use of advanced intelligent protection chip， the overcharge protection， discharge protection， overload protection， shortcircult protection，Leakage protection and five heavy security protection.After 72 hours again text， the product performance is stable.High power conversion efficiency: the power conversion is as high as 90% or above， much higher than other similar products.How to Use:1.Charge for the power bank:Plug the micro port of the V8 data cable into the power bank and plug the USB port into a standard USB wall charger (Not Included) or computer USB outlet port， when the indicator lights is flashing， When the indicator light stop flashing，end the charging progress.2.Charge for your phone or other devices:Plug the USB port of the V8 data cable into the power bank and plug the micro port into the charging port of your phone or other devices(using your USB data cable)，when the indicator lights is flashing and your device is in charging state.Specification:Capacity: 20000mAh/50000mAhInput: DC 5V/1.5A(Max)Dual Output: 5V/1.5A(Max)Dimensions: L x W x H:14.1 x 6.5 x 2.2cm/5.55 x 2.55 x 0.87''USB Cable length: 29cm/11.4''Power Bank Colors: Gray， Red， Black， GreenUSB Cable Color: WhiteQuantity: 1 PcNote: 1.Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors， the picture may not reflect the actual color of the item. Thank you!Package includes:1 x Power Bank1 x USB Cable