Description: 【Long Term Power Supply】: Equipped with a high capacity 18650 rechargeable lithium battery, this M5StickC Plus2 IoT development board ensures extended usage time for your devices, making it ideal for prolonged activities without frequent recharging 【Innovative Design】: The base features a plug in structure design from the HAT series, ensuring a stable and reliable connection with the M5StickC during use. This design enhances user experience by providing seamless integration and functionality 【Convenient Charging Interface】: The bottom of the base includes a USB charging port, allowing for quick and easy recharging of the battery. Please note that this USB port is solely for charging purposes and does not support serial communication functions 【Versatile Installation Options】: The back of the base is equipped with various mounting holes, enabling users to effortlessly install it on different surface, enhancing its adaptability to diverse environments 【Compact Dimensions and Material】: Made from plastic, the charging base measures 4.49inchx2.52inchx0.91inch while the development board 1.89inchx0.98inchx0.51inch in size, offering a compact solution that fits well into any setup without occupying much space Specification: Input voltage 5V @ 500mA Interface Type C x 1, GROVE(I2C+I/0+) x 1 LCD screen 1.14 inch, 135*240 Colorful LCD, ST7789v2 Microphone SPM1423 Led LED x 1 Antenna 2.4G 3D antenna External pins G0, /G26, G36, G32, Battery 200mAh @ 3.7V, inside Operating temperature 0 Degree to 40°C Size Chart: Charging Base: 11.4cmx6.4cmx2.3cm/4.49inchx2.52inchx0.91inch Development Board: 4.8cmx2.5cmx1.3cm/1.89inchx0.98inchx0.51inch Package Includes: 1 Development Board 1 Charging Base Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.