Support SIM/USIM/UIM,standard 6 PIN SIM card interface, support 3V SIM card and 1.8V SIM card;internal. Antenna internal WIFI antenna;2 internal LTE antenna; 2 external antenna for optional. Frequency LTE:B1/3/5/7/8/20//38/40/41 WCDMA:B1/5/8.
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