Tech specs

    Wireless Standard: 802.11 b/g/n
    Frequency range: 2.4 GHz - 2.5 GHz (2400M-2483.5M)
    Wi-Fi mode: Station / SoftAP / SoftAP+station
    Stack: Integrated TCP/IP
    Output power: 19.5dBm in 802.11b mode
    Data interface: UART / HSPI / I2C / I2S / Ir
    Remote Control GPIO / PWM
    Supports protection mode: WPA / WPA2
    Encryption: WEP / TKIP / AES
    Power supply: from 4.5 VDC to 9 VDC (VIN) or via micro USB connector
    Weight: 10 grams


Included is ONE new in box ESP8266 board as pictured.
These are very likely some sort of Chinese clone type thing - but they work just fine with the Arduino IDE in my testing.

Note:  I am unable to provide any sort of SUPPORT for these devices.   They're brand new, and I've used a few of them myself so I know they're working - but by buying these from me you accept that I cannot and will not provide guidance on HOW to use them or troubleshoot any particular functionality. They come with no warranty and are priced accordingly.