ESP8266-12E is an enhanced version of ESP8266-12.It has perfect peripheral circuits, enhanced impedance matching, and better signal output.Both stability and anti-interference ability have been greatly improved! For users who chose ESP-12 before, it doesn't matter even if they have already made a product.The enhanced version is fully compatible with the previous firmware, and the pins are added six IO ports and SPI ports on the basis of ESP-12.Colour:blackMaterial:PCBSize:35 x 27mmPackage Contents:5 x moduleOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.