1Protocol 802.11 b / g / n / e / i (802.11n, rate up to 150Mbps) A-MPDU and A-MSDU aggregation, support 0.4S guard interval. 2The protocol complies with the Bluetooth v4.2BR / EDR and BLE standards. 3RF NZIF receiver Class-1, Class-2 and Class-3 transmitter AFH with -98dBm sensitivity, audio CVSD and SBC audio. 4With high specification process, carefully welded, precise hole position, full-featured. 5Mini size, compact and convenient, embedded, very convenient to install. Item Type: Module Hardware Specifications: Chipset: ESPRESSIF-ESP32-PCIO-D4240MHz for Xtensa Single/Dual Core 32-Bit LX6 Microprocessor FLASH: QSPI Flash / SRAM up to 4 x 16 MB SRAM: 520 kB SRAM KEY: Reset, IO32 Display: 0.91 SSD1306 Power Indicator Light: Red USB to TTL CP2104 Camera: OV2640 2MP Steering Engine: Analog Servo Onboard Clock: 40MHz Crystal Oscillator Working voltage: 2.3V-3.6V Working Current: About 160mA Operating Temperature Range: -40 C ~ + 85 C Power Supply Specifications: Power: USB: 5V / 1A Charging Current: 1A Battery: 3.7V Lithium Battery WIFI Description: Standard: FCC / CE / TELEC / KCC / SRRC / NCC Protocol: 802.11 B / G / N / E / I (802.11n, Rate up to 150Mbps) A-MPDU and A-MSDU aggregation, support 0.4S Protection Interval Frequency Range: 2.4GHz~2.5GHz (2400M~2483.5M) Transmitting Power: 22dBm Communication Distance: Approx. 300 Meters / 984ft Bluetooth Instructions: The protocol complies with the Bluetooth v4.2BR / EDR and BLE standards RF NZIF Receiver with Class-98dBm Sensitivity Class-1, Class-2 and Class-3 Transmitter AFH, Audio CVSD and SBC Audio Software Specification: Wifi Mode: station / SoftAP / SoftAP + station / P2P Security Mechanism: WPA / WPA2 / WPA2-Enterprise / WPS Encryption Type: for AES / RSA / ECC / SHA Firmware Upgrade: UART download / OTA (download and write firmware via network / host) Software Development: Supports cloud server development / SDK for user firmware development Network Protocol: For IPv4 / IPv6 / SSL / TCP / UDP / HTTP / FTP / MQTT User Configuration: AT + Instruction Set, Cloud Server, for Android / iOS app OS: For FreeRTOS border: 1px solid000important;}1 x Development Board1 x Antenna1 x Power Cord