This product offers low power consumption, support for IEEE802.11b/g protocols, and a compact, . bridges the Space between UART and network platforms. Low-Cost, High-Performance Wi-Fi Router Module It's a truly transparent transmission UART module, built-in with TCP / IP protocol stack, enabling users to reduce development cycle. with a host computer, WEB browser or APP, you can set up parameters conveniently. Network standards: IEEE 802.11b/g/nIEEE 802.3/u Frequency range: 2.412-2.484GHz Transmit power: 15-20dBm Receiving sensitivity: -75dBm~-88dBm Antenna type: external/onboard antenna Hardware interface: UART/PWM/GPIO/SPI/ADC Working voltage: 3.3V GPIO driver: Max: 8mA Working current: average 200mA Wireless network: Router/AP/STA/AP Client/Bridge Security mechanism: /WPA-/WPA2- Encryption type: WEP64/WEP128/TKIP/ Firmware upgrade: serial port upgrade/wireless upgrade/network port upgrade Network protocol: TCP/UDP.DHCP.HTTPFTP User configuration: AT set/web page configuration/serial port tool/mobile phone configuration Working temperature: -20-+80 Working humidity: 10%-90%RH (non-condensing) Storage temperature: -40-+85 Storage humidity: 5%-90%RH (non-condensing) Material: plastic+metal colour: blue+white Package Contents: 1 x WiFi Module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.