Features: 1.Multi-port: Micro USB input, dual USB output, Type-C input, more convenient for using. 2.Over-charge, over-discharge, over-load protection. 3.Dual indicator lights show the charging status. LCD screen digital display. 4.Portable design, convenient to carry. 5.Wide compatibility for most digital devices(Output voltage of the device should be 5V). specification: Multi-port: Micro USB input, dual USB output, Type-C input, more convenient for using. Over-charge, over-discharge, over-load protection. Dual indicator lights show the charging status. LCD screen digital display. Portable design, convenient to carry. Wide compatibility for most digital devices(Output voltage of the device should be 5V). s: Shell Material: Plastic Battery Model: 8 x 18650 Batteries(NOT included) Input Interface: 1 x Micro USB Port, 1 x Type-C Port Output Interface: 2 x USB Ports Capacity: 20000mAh Input Voltage: 5V 2A(Max) Output Voltage: 5V/1A, 5V/2A Charging Limited Voltage: 5.5V Color: White, Blue, Black(Optional) Compatible: For most digital devices(Output voltage of the device should be 5V) Size: Approx. 161 x 81 x 22.5mm / 6.34 x 3.19 x 0.89 inch Package Weight: 95G Quantity: 1PC Note: 18650 Battery must be flat head, NOT the tip battery. 8 x 18650 Batteries are NOT included. Please follow the battery positive and negative installation(The negative pole of the battery attaches to the spring of the shell) This is a power bank kit, not a finished product. Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. Package List: 1 x Power Bank DIY Kit (Including PCBA board and shell, other items in the pictures are not included.) Note: When installing batteries, pay attention to the polarity direction.