"Description: This downloader use CH340C chip, added ESP8266 auto-download circuit, it is very convenient for user to download program, update firmware, debugging It support Arduino IDE, Ai-thinker ESP8266 Flasher and Espressif FLASH_DOWNLOAD_TOOLS No need connection, no need to press button, WiFi module will go into download mode automatically It has RESET tact switch
Voltage: 5V
Interface: USB
Type A Package Includes: 2 X USB to ESP8266 CH340C ESP-01 ESP-01S Prog WiFi Programmer "