All electronics ship with US style plugs.You may need a voltage converter or a plug adapter.
Special Features
ESP8266 ESP-01S serial WiFi wireless transceiver module used 4MB Flash, not 1MB flash
Red :USB Programmer selectable working mode: On-board toggle switch. UART side for serial TTL debugging by AT commands, PROG for firmware programming
Red :Programmer USB to serial TTL chip: CH340G, please check if your computer has installed the driver before use it
Blue:This downloader use CH340C chip, added ESP8266 auto-download circuit, it is very convinent for user to download program, update firmware, debuggin
Blue:No need connection, no need to press button, WiFi module will go into download mode automatically