Product Description<br><br>ESP8266-12F is an enhanced version ESP8266-12・improve peripheral circuits・four plate board technology・enhanced impedance matching・the signal output is better・whether it is stable or anti-jamming capability・PCB antenna through specialized laboratory testing・a perfect match after ROHS certification・have been greatly improved! For users before selecting the ESP-12・it does not matter even if the product has been made・enhanced version is fully compatible with previous firmware・the pin has added the ESP-12 on the basis of six IO ports・SPI mouth leads・develop more convenient・application more extensive<br><img src="http://gdetail.image-gmkt.com/030/717423496/2016/4/ffdc5b4a-7a66-4af2-b8f7-ec1ab38d7866.jpg" undefined="" width="834" height="456"><br><br><br><img src="http://gdetail.image-gmkt.com/030/717423496/2016/4/f3447ba5-50cd-4d16-b091-c1de1f1bd185.jpg" undefined="" width="830" height="919"><br><img src="http://gdetail.image-gmkt.com/030/717423496/2016/4/51e94b36-1582-4cbd-8d20-8bdb844dcab8.jpg" undefined="" width="830" height="927"><br><img src="http://gdetail.image-gmkt.com/030/717423496/2016/4/b6912981-6400-439a-8303-f79d824f7ceb.jpg" undefined="" width="828" height="703"><br><img src="http://gdetail.image-gmkt.com/030/717423496/2016/4/b86cead2-1c97-4246-a237-a31b7c5b5264.jpg" undefined=""><br><br><br><br><br><br><br><br>Packaging Details<br>Unit Type: piece Package Weight: 0.100kg (0.22lb.) Package Size: 10cm x 5cm x 5cm (3.94in x 1.97in x 1.97in)