2G bands GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only). SIM Dual SIM (Micro-SIM, dual stand-by). 3G bands HSDPA 900 / 2100 - SIM 1. Loudspeaker Yes. All our smartphones are factory unlocked.However, different model work with different network bands.
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