ESP-07 ESP8266 Serial WIFI Module

Specifications:  Communication interface voltage: 3.3V  IO Port Package: SMD, all IO ports are led out.  Antenna Type: Built-in ceramic antenna is available, and you can also use an external antenna.  Wireless Network Mode: station / softAP / SoftAP + station  Wireless criteria: 802.11 b / g / n  WIFI @ 2.4 GHz, support for WPA / WPA2 security mode Min Current (Sleep): 10mA Max current (connected to 802.11b network): 215mA Power: +25dBm