ITEM NAME:DIY Digital Display Dual USB Mobile Power Bank Kit Pack Case Black Description: This is a power bank kit (including circuit board and shell), not a finished product; not including the battery, etc. You need to buy 6pcs 18650 battery. DIY-Removable and free soldering design, you can do it by yourself. Dual USB ports provide extra backup power to more devices. You can check the remaining battery power on the charger. Over-charge, over-discharge, over-heat, over-power, over-voltage and short circuit protection, much safer charging. Support Type-C and Micro USB input, dual USB output. Specification: 6 pieces 18650 batteries can be installed, easy to use and secure. Adaptive battery: 6 pieces 18650 battery (not included in package) Port: Micro USB x 1, Type-C x 1, USB x 2 Input: 5V/2A Output: 5V/2A Size: 22mmX76mmX150mm Package Includes: 2 pieces cover (top & bottom) 1 piece Led Panel SKU: ALU0014980751018342.Support Type-C and Micro USB input, dual USB output. This is a power bank kit (including circuit board and shell), not a finished product; not including the battery, etc. Port: Micro USB x 1, Type-C x 1, USB x 2.