It can be used as a master mode to build an independent network controller. Can be a slave to other host MCUs to add networking capabilities to existing devices. It is suitable for home smart devices, industrial wireless control, wireless positioning system signals, etc. Low-power dual-core 32-bit CPU for application processors; Up to 240MHz, up to 600 DMIPS. Support for images WiFI upload; Support TF card; Support multiple sleep modes. Specification: Color: as pictures shown. Material: metal. ESP32-CAM Size: 27x40.5x4.5mm. Note: There might be a bit color distortions due to different computer resolutions. There might be a slight errors due to different hand measurement. Package included: Type 1: 1* OV2640 module. Type 2: 1* ESP32-CAM development board. Type 3: 1* ESP32-CAM development board. 1* OV2640 module.