E390是基于高通最新的QSC6085平台开发的EVDO Rev.A标准的3G无线通讯模块，适用于CDMA 1X 和EVDO网络，支持CDMA 800MHz和1900MHz 两个频段，可实现全球漫游。-E390 is based on Qualcomm' s latest platform QSC6085 the EVDO Rev.A standard 3G wireless communication module for CDMA 1X and EVDO network that supports both CDMA 800MHz and 1900MHz frequency bands, enabling global roaming.