Features: Brand new and high quality Support Arduino- Development Environment: WiFi kit 32 is aclassic IoTDev-board, it’s highly integrated development board based- on ESP32 (including WiFi and BLE). Easy to Use: With good RFcircuit and low-power design, ESP32 development board is the best- choice for smartcitites, farms, homes, and 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- 1.25 battery interface, integrated lithium- battery management system. You can also use the TypeC interface to power the development board, the interface with complete ESD- protection, short circuit protection, RFshielding 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. Specifications: Item: ESP32 WiFi Bluetooth-compatible Dual- Module- Screen: 128x64 Display: 0.96inch LCD display Size: approx. 50x25.4x10.3mm/1.97x1x0.41in Package Includes: 1 x ESP32 Development Board 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!