Features: brand new and high quality Support Arduino Development Environment: WiFi kit 32 is a classic IoT Dev-board, it's a highly integrated development board based on ESP32 (including WiFi and BLE). Easy to Use: With good RF circuit and low-power design, ESP32 development board is the best choice for smart citites, farms, homes, and IoT makers. Perfect Circuit Design: Onboard WiFi, Blue tooth 2.4GHz PCB antenna. Integrated CP2102 USB to serial port chip, convenient for program downloading, debugging information printing. Power Supply: Onboard SH1.25 battery interface, integrated lithium battery management system. You can also use the Type-C interface to power the development board, the interface with complete ESD protection, short circuit protection, RF shielding and other protection measures. OLED Dispaly: Onboard 0.96-inch 128x64 dot matrix OLED display, which can be used to display debugging information, battery power, and other information. Package Includes: 1 x ESP32 Development Board Specifications: Item: ESP32 WiFi Bluetooth-compatible Dual Module Screen: 128x64 Display: 0.96inch LCD display Size: approx. 50x25.4x10.3mm/1.97x1x0.41in note: Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!