NOTE:<br /><br />    1.This is a power bank kit (including circuit board and shell)， not a finished product. You should buy 5 * 18650 batteries and install them by yourself. The cable is not included either.<br /><br />    2.DO NOT support free soldering， you must have related knowledge and tools before buying it.<br /><br />This is a DIY Portable Power Bank Case for you and Baterries NOT Included.<br />Package: 1x Power Bank Case DIY Kit<br /><br />2x 18650 Power Bank Case DIY Kit:<br />Specification:<br />Material: plastic cement<br />Interface: USB2.0/micro USB<br />Product size: 4.1*2.1*9.7cm<br /><br />Digital Display 4x 18650 Power Bank Case DIY Kit:<br />Specification:<br />Shell material: plastic<br />Color: black， blue， green， orange， red (optional)<br />Input voltage: 5V / 1A<br />Output voltage: 5V / 1A<br />Batteries:4pcs 18650<br />Interface: 2 USB2.0， 1 micro<br />Switch: key switch<br />Additional features: with LED flashlight<br />Product size: 12.5 x 7.5 x 2.5cm<br /><br /> 4x 18650 Power Bank Case DIY Kit:<br />Specification:<br />Color: green， black， red， blue， orange<br />Material: plastic + electronic components<br />Product Size: 10.9 * 7.3 * 2.3CM<br />Capacity (max): 12000mah<br />Input voltage: DC5V<br />Output voltage: DC5V<br />Power supply: four 18650 batteries (not included)<br />Additional features: with LED flashlight<br />Interfaces: 4 USB ports， 1 mricon USB interface