Features: and for R32 WiFi and Bluetooth-compatible esp32 development board Support for DC 5V-12V With 1 analog input ,3.2V max input. A Micro USB connection suport 4MB Flash memory for For R32 WiFi+Bluetooth-compatible Specifications: Item: for R32 ESP32 WiFi + Bluetooth-compatible Board Type: Voltage Regulator Flash Memory: 4MB Maximum supply voltage: 12V Minimum supply voltage: 9V Size:approx 6.8X5.4CM/2.68x2.13in 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! Package includes: 1 x for R32 ESP32 WiFi + Bluetooth-compatible BoardNote: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.