... ,ROHS 4 .twelve months warrant 5.AC/DC Adapter 6V1A AC /DC adapterfeatures:1.input voltage:100 ... ,US,etc......... Protection :overtemperature protectionovervoltage protectionshort circuit protection USB adapter suitable for occasions & crowd1.hotels,banks,gift company, ... foreign students,tourist....... About us :We are professional USB adapter factoryfor more than 6 years1.quality control--our defective ...