ITEM NAME:WiFi and Bluetooth 4MB Flash D1 R32 Module Board CH340G Development Board Product Description Description: Specification: DC 5V-12V 1 Analog Input (3.2V Max Input) A Micro USB Connection D1 R32 = WiFi + Bluetooth + One Size: 68mm*54mm*10mm/2.67*2.12*0.39'' Weight: 23g Note: Please allow 1-3mm differs due to manual measurement. Due to the different display and different light, the picture may not show the actual color of the item. Thanks for your understanding. Included: 1 X WiFi Bluetooth 4MB Flash D1 R32 Module.Included: 1 X WiFi Bluetooth 4MB Flash D1 R32 Module. D1 R32 = WiFi + Bluetooth + One. 1 Analog Input (3.2V Max Input). Due to the different display and different light, the picture may not show the actual color of the item.