Its low consumption internal battery supports a up-to-3-year work duration. Why choose Jimi LL01. LL01 Product Detail. Communication network LTE/EGPRS. Frequency LTE CAT M1/NB2: B1/B2/B3/B4/B5/B8/B12/B13/B18/B19/B20/B26/B28/B66.
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