Work Mode and Band: Portable wifi device work with 4G and WiFi, support LTE FDD B1 B3 B5 B7 B8 B20; LTE TDD: B38 B40 B41; WCDMA: B1 B5 B8, supports sim card and storage card extension. LTE FDD: B1 B3 B5 B7 B8 B20.
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