802.11 b/g/nWi-Fi Direct (P2P), soft-APIntegrated TCP/IP protocol stackIntegrated TR switch, balun, LNA, power amplifier and matching networkIntegrated PLLs, regulators, DCXO and power management units+19.5dBm output power in 802.11b modePower down leakage current of <10uAIntegrated low power 32-bit CPU could be used as application processorSDIO 1.1/2.0, SPI, UARTSTBC, 1×1 MIMO, 2×1 MIMOA-MPDU & A-MSDU aggregation & 0.4ms guard intervalWake up and transmit packets in < 2msStandby power consumption of < 1.0mW (DTIM3) Help your development more easy.ESP8266 Serial WIFI Module Communite Forum>> Detail about ESP8266