This phone will only work with 2G: GSM 850\/900\/1800\/1900MHz 3G: WCDMA 850\/900\/1900\/2100MHz 4G: FDD-LTE 1800\/2100\/2600MHz 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>       Sreenshots:<br><br><br><br> Description:  Letv Max is a body thickness of only 8.95mm， 6.33-inch 2K high-definition IPS screen ultra-thin smartphone，with Qualcomm Snapdragon 810 64BIT octa-core processors， 4GB RAM， 128GB ROM， SONY 21.0MP OIS camera， USB  Type-C Slot， Press type  fingerprint Identification， large 3400mAh lithium ion battery， let you enjoy the HD video  and games bring pleasure anytime and anywhere， with the latest Android L OS， Letv Max shows in the same <br> configuration of mobile phone ultra high performance-to-price ratio， is your best choice of purchase!  More details:<br>          Basic Information                      Model        Letv Max X900            Band        2G: 850\/900\/1800\/1900MHz            3G: WCDMA 850\/900\/1900\/2100MHz            TD-SCDMA B34\/B39            4G: FDD-LTE 1800\/2100\/2600MHz            TDD-LTE B38\/B39\/B40\/B41            SIM Card        Dual SIM Card， Dual standby，MicroSIM + NanoSIM            Style        Bar            Color        Gold            Shell Material              metal， glass            Unique        1.Support MHL2.0，wireless HDMI     2.USB Type-C 2.0 interface     3.No border ID design     4.Independent HiFi Music Chip     5.2K Resolution Screen     6.Press type fingerprint Identification                       System            OS        Letv EUI (base on android 5.0)            CPU        Qualcomm Snapdragon 810 (4*1.5GHz A53 +4*2.0GHz A57) Octa-Core            GPU        Adreno 430            ROM        128GB (eMMC5.0)            RAM        4GB (LPDDR4)                       Screen            Display Size          6.33-Inch            Type        IPS， LCD Capacitive Screen            Resolution        2560*1440 Pixel            PPI        464            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        Yes，earphone needed            Earphone Port        3.5mm            Card Extend        No support                       Data Transfer &amp;amp; Connectivity            Data transfer        USB\/Bluetoo