More details:<br><br><br><br><br><br> This phone will only work with 2G: GSM 850\/900\/1800\/1900MHz 3G: WCDMA 850\/900\/2100MHz  4G: FDD-LTE 800\/1800\/2100\/2600 MHz It's unlocked for worldwide use， customers please take a check to see if your local area network or the communication operator you are using is compatible with this phone before purchase. You can also go to this topic [===Official Help Center=== How To Check If This Phone Can Be Used In Your Country] to find how to confirm this. <br>          Basic Information                       Model        BLUBOO X550            Band        2G: GSM 850\/900\/1800\/1900 MHz                  3G: WCDMA 850\/900\/2100 MHz            4G: FDD-LTE 800\/1800\/2100\/2600 MHz            SIM Card        Dual SIM Card， Dual standby            Style        Bar            Color        White， Black            Shell Material              Plastic            Uinque        1. Amprius 5300mAh Capacity Li ion battery     2. Support MTK PumpExpress Plus Quick-Charge technique     3. Support mobile phone as power bank to recoil the other devices                       System            OS        Android 5.1            CPU        MTK6735 Quad Core 1.0GHz             GPU        Mali-T720            ROM        16GB (eMMC 5.0)            RAM        2GB (LPDDR3)                       Screen            Display Size          5.5-Inch            Type        IPS，LCD Capacitive Screen， OGS Full Lamination technology            Resolution        1280*720 Pixel            Multi-Touch        Yes                       Support Format            Ringtones Type        Polyphonic\/MP3            Audio File Format        MP3\/MIDI\/AMR\/FLAC\/APE\/M4A\/AAC\/MKA\/OGG            Video File Format        3GP\/MP4\/MOV\/MKV\/AVI\/FLV\/MPEG            Image File Format        JPEG\/BMP\/GIF\/PNG            E-book Format        TXT，PDF            FM Radio        Support， Earphone needed            Earphone Port        3.5mm            Card Extend        Support TF card to 64GB extended                       Data Transfer &amp;amp; Connectivity            Data transfer        USB\/Bluetooth            Mobile internet        WAP\/WiFi                       General             Camera\/Picture      Resolution        Front Camera: 2.0MP             Rear Camera: 8.0MP f\/2.0 BSI CMOS with Flash LED            Language        English，Multinational language  (More details please refer to the screenshots.)            Phonebook        500            Message        SMS\/MMS\/E-Mail            Input        Handwrite，The virtual keypad            GPS        Yes，GPS+AGPS Navigator            WIFI        Yes，802.1 b\/g\/n            GPRS        Yes            WAP        Yes            Bluetooth