Features: 100%Brandnewandhighquality! Modernhighlevelmaturebasedtechnology. BasedonthematureESP8266technologytotakeadvantagetheabundantresourcesavailableontheweb. Specifications: Supportswireless802.11b/g/nstandard SupportSTA/AP SupportsTCP/UDPServerandClient Wirelesstransmissionrate:110-460800bps Material:Electronic Color:Blue Size:approx.67mmx52mm NetWeight:25g Packageincludes: 1xESP8266WiFiDevelopmentBoard