Compact and Lightweight Design: The module is small in size, making it easy to integrate into a variety of devices and projects without taking up much space. High Efficiency: The module is designed to deliver power with minimal energy loss, ensuring that your battery charges quickly and efficiently. Built-in Protection Circuits: The TP5400 includes overcharge, over-discharge, and short-circuit protection to safeguard your battery and device from potential damage. Micro USB Input: The module uses a standard Micro USB port for input, allowing you to use any compatible USB power source for charging. Step-Up Functionality: The module can boost the input voltage to the required level for charging lithium batteries, making it suitable for a wide range of applications. Color: As Shown Material: Metal Package Contents: 1*Module 2*Wiring Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.