Dual SIM Dual Standby: This is a 3G smartphone that supports dual 3G networks. Frequency band 2G GSM B2/3/5/8, 3G WCDMA B1/2/5/8. I/O: 1 x Micro USB, 1 x 3.5mm headphone jack. Network Standard: GSM850/900/1800/1900MHz, 3G: WCDMA850/1900/2100MHz, Dual SIM Dual Standby.
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