Features 1、HIGH PERFORMANCE PROCESSOR: Development board equipped with high performance for Xtensa 32 bit LX7 dual core processor, the main frequency up to 240MHz. 2、MEMORY: Development Board integrates 512kB RAM, 384kB ROM, 8MB PSRAM, 16MB Flash memory. Operating voltage 3.3V; External power supply voltage 6~21V. 3、SUPERIOR RF PERFORMANCE: Integrated 2.4GHz WiFi and Bluetooth LE dual mode wireless telecommunication for superior RF performance. 4、EASY SWITCHING, IOT CLOUD APPS: Supports seamless switching between programs for more flexible use. Compatible with for IoT Cloud, use the IoT Cloud app to display and control user projects from anywhere. 5、FOR HID SUPPORT: The development board supports for HID, which makes it easier to interact with a computer by emulating a human interface device (such as a keyboard or mouse) via USB. Specification Item Type: Development Board Material: PCB Microcontroller: for Espressif (32 Bit for Xtensa LX7 Dual Core) Clock Speed: 240MHz Memory: 384kB ROM, 512kB RAM, 16MB Flash, 8MB PSRAM Wireless: 2.4GHz WiFi, Bluetooth LE Reset Button: Vertical Package List 1 x Development Board