WiFi / 802.11 Development Tools HUZZAH ESP8266 Breakout (1 piece)<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Price For: Pack of 1 Manufacturer: Adafruit Industries Product Category: WiFi / 802.11 Development Tools RoHS: Product: Breakout Boards Tool Is For Evaluation Of: ESP8266 Protocol Supported: 802.11 b/g/n Frequency: 2.4 GHz Operating Supply Voltage: 3.3 V Antenna Connector Type: Internal Brand: Adafruit Description/Function: Breakout board for ESP8266</li><li>Dimensions: 38 mm x 25 mm x 5 mm Interface Type: I2C/SPI， UART Packaging: Bulk Tradename:</li></ul></div><img src="http://ecx.images-amazon.com/images/I/51JYSGdDkuL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51ZR0HudY9L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51kkZF4f51L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/61a23JeWUPL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51W131IGqLL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/519joTHIi8L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51KP28UvZ4L.jpg" noproxy>