Description: Battery case can be disassembled and repeatedly replaced with batteries, which can be quickly charged and durable, and can be intelligently and automatically turned off when not working. There are LED display and button functions in this battery case. Click to display the amount of electricity, so that the remaining amount of electricity can be seen at a glance. Long press or double click to turn on the small light. It is constructed of plastic material. The length of this product is 14.6cm, the width is 6.6cm and the height is 1cm. It is suitable for home, out, travel, office, etc. Item Name: Battery Charger Box Material: Plastic Features: Easy Installation, Plug and Play, Practical Battery Type: 3.7V 18650 Battery (Flat Head) (Battery Not Included) Output: 5V/ 2.4A (MAX) Input: 5V/ 2.1 Input Connector: Type-C, Micro Connector (PD Not Supported) Button Function: Click to Show the Power, Long Press or Double Click to Open the Light Size Details: L: 14.6cm/5.75", W: 6.6cm/2.6", H: 1cm/0.39"(Approx.) Notes: The spring is the positive pole, the spring is the negative pole, please put it in correctly. Do not a positive and a negative, otherwise the spring will burn out and damage the product. Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Battery Charger Box (Others Not Included) Battery case can be disassembled and repeatedly replaced with batteries, which can be quickly charged and durable, and can be intelligently and automatically turned off when not working. There are LED display and button functions in this battery case. Click to display the amount of electricity, so that the remaining amount of electricity can be seen at a glance. Long press or double click to turn on the small light. It is constructed of plastic material. The length of this product is 14.6cm, the width is 6.6cm and the height is 1cm. It is suitable for home, out, travel, office, etc.