This product offers low power consumption, support for IEEE802.11b or 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 or 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 or g or nIEEE 802.3 or u Frequency range: 2.412-2.484GHz Transmit power: 15-20dBm Receiving sensitivity: -75dBm- 88dBm Antenna type: external or onboard antenna Hardware interface: UART or PWM or GPIO or SPI or ADC Working voltage: 3.3V GPIO driver: Max: 8mA Working current: average 200mA Wireless network: Router or AP or STA or AP Client or Bridge Security mechanism: or WPA- or WPA2- Encryption type: WEP64 or WEP128 or TKIP or Firmware upgrade: serial port upgrade or wireless upgrade or network port upgrade Network protocol: TCP or UDP.DHCP.HTTPFTP User configuration: AT set or web page configuration or serial port tool or mobile phone configuration Working temperature: -20-and80 Working humidity: 10percent -90percent RH (non-condensing) Storage temperature: -40-and85 Storage humidity: 5percent -90percent RH (non-condensing) Material: plasticandmetal colour: blueandwhite 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.