Microprocessor: ESP32-C3FN8 (32-bit RISC-V architecture, the main frequency can reach 160mhz); TYPE-C USB interface has complete voltage regulation, ESD protection, short circuit protection, shielding and other protection measures; Vehicle SH1.25-2 battery interface, integrated lithium battery management system (charge and discharge management, overcharge protection, battery power detection, USB/battery power automatic switching). Integrated WIFI and Bluetooth two-way network connection, onboard 2.4GHz PCB antenna dedicated to WIFI and Bluetooth. Vehicle-mounted 0.96-inch 128 x 64 dot matrix OLED display. Support FOR development environment. Integrated CP2102 USB to serial port chip, convenient for program download and debugging information printing. Colour:White+black Material:PCB+ metal Package Contents: 2 x ESP32 board 4 x pin 2 x cable 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.