English 
ESP8266 Wifi Module ESP-07 For Arduino UNO WIFI Transceiver Wireless Esp-07 AP+STA WiFi Board Panel 3.3V 300mA
Model: ESP8266 ESP-07
Semi-hole chip technology, all the IO leads, with metal shielding
shell, external IPX antenna, built-in ceramic antenna can also be used
ISM 2.4GHz
PA +25dBm
802.11b/g/n
Warnings:
This module requires a 3.3 volt supply for VCC, and 3.3V logic.
It is not 5V tolant,Connect RX or TX on 5V FOR Arduino will destroy this module.3.You must use a logic level converter, or a 3.3V FOR Arduino
The 3.3V supply on the FOR Arduino Uno has inadequate current capabilit to power this module.
You must provide a separate,higher 3.3V supply(about 300mA or better)
Package Included:
1 x ESP8266 Remote Serial Port WIFI Transceiver Wireless Module Esp-07 AP+STA
Different type of ESP8266 Serial have its own features:
1. ESP-01:PCB Antenna, 400m Distance understand empty condition, easy to use
2. ESP-02: Surface Mount Device, suitable for submission limit, antenna can leads to the shell by using IPX header
3. ESP-03: Surface Mount Device, Built-in ceramic antenna process, all are able to be leaded by IO
4. ESP-04: Surface Mount Device,type of antenna could be customized,flexible design,all are able to be leaded by IO
5. ESP-05: Surface Mount Device,only lead out the Port and RST Foot,with small volume, compatible with external antenna
6. ESP-06:Bottom SMT technology,all are leaded by IO,with metal shielding case
7. ESP-07: Semi hole SMT technology,all are leaded by IO,with metal shielding case,support external IPX antenna as well as internal ceramic antenna.
8. ESP-08: Semi hole SMT technology,all are leaded by IO,with metal shielding case,type of antenna could be defined by customers .
9. ESP-09:Ultra small packaging as 10*10mm. 4 layer technology, 1M byte!
10. ESP-10:Patch Interface,narrow body design,10mm width,suitable for LED Controller.
11. ESP-11:Patch Interface, ceramic antenna,small body design.