Features:100% brand new and high quality.Apply Battery Type: 18650 battery(not include)Output Voltage:  5V  2.1AInput Voltage: 5V 1AInstructions: Level 4 Capacity indicatorLighting: with LED lightsRated Voltage: 3.7V ( Suit for 3.2V-4.2V. The batteries are in parallel) Specifications:Material: Plastic + Electronic componentsShell Color: Random delivery (If you buy more, you may receive the same color or multiple colors)Shell Size: 140×64×22mm/5.51×2.52×0.87in Quantity: 1 PC  Note: 1.Transition: 1cm=10mm=0.39inch2.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid.3.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: (No retail package)1 X Plastic Shell(with a Circuit Board inside)Or  1 X 3-Port USB Circuit Board