Model:ESP8266
ISM 2.4GHz
PA +25dBm
802.11b/g/n
4.The 3.3V supply on the FOR Arduino Uno has inadequate current capabilit to power this module.
Package Included:
1 x ESP8266 Remote Serial Port WIFI Transceiver Wireless Module Esp-07 AP+STA
1 x 2.4G Wireless SMA Antenna 2dB Gain for NRF24L01+ PA CC2500