Features: 【Type C Port】Features USB Type C port enabling reversible plugging for enhanced convenience. 【Input Voltages Ranges】Supports 5V USB power input, compatibles most USB adapters and power banks. 【Output Voltages】Specifically designed for 3.7V batteries, ensuring a safe and stable charging process. 【Charging Management Chip】Integrated with intelligent charging management IC, providing overcharge, over-discharge, and short-circuit protections to extend battery life 【Compact and Portable】The module's small size facilitates easy integration into various portable devices, such as projects, small robots, and wireless earphones. Specifications: Component: ABS. Size: about 30x20mm/1.18x0.79in Weight: 5gram. TYPE C USB input voltages: 5V. Quantity： 1/3/5pcs Used for charging battery for portable electronic products such as mobile phones, tablets, Wireless headsets Package Includes: 1/3/5pcs battery charging module note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.