Features: brand new and high quality Latest upgrade of the circuit board with single cell balance detection function, it can make each cell charge and discharge the balance, effectively avoiding overcharging and excessive discharge of each cell. Built-in memory chip and cpu, can automatically set the battery charging effect, protect the battery. Protects features against incorrect voltage, short circuit, and internal overheating. High quality, strong and durable material for case with shockproof design. LED indicator, you can know the remaining power at any for time. Specifications: Material:ABS Size:As Picture Shown Color:Black for Package Includes: 1 Set Battery for Case note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.