Equipped with Xtensa 32-bit LX7 dual-core processor, up to 240MHz main frequency ^^ Supports 2.4GH z Wi-Fi ( 802.11 b/g/n) and Bluetooth 5 (LE) ^^ Built in 512KB of SRAM and 384KB ROM, onboard 4MB Flash memory and 2MB PSRAM ^^ Castellated module and onboard ceramic antenna, allows soldering direct to carrier boards. ^^ Supports flexible clock, module power supply independent setting, and other controls to realize low power consumption in different scenarios