This phone will only work with 2G: GSM 850\/900\/1800\/1900MHz 3G: WCDMA 850\/2100Mhz 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> What is the function for Intelligent Wake Up:<br> When the phone is on standby and the screen is black， you can just slide the screen then the phone can open the specify Apps Automatically.<br><br><br>          Basic Information            Model        CKCOM K2            Band        2G: GSM 850\/900\/1800\/1900MHz            3G: WCDMA 850\/2100MHz            Sim Card        Dual SIM Card Dual Standby(one micro-sim card)            Service Provide        Unlocked            Style        Bar            Color        All Black，Black&amp;amp;White (Front Black Back White)            Shell Material        Plastic                        System            OS        Android 4.4.2            CPU        MTK6582M Quad Core 1.3GHz            ROM        4GB            RAM        1GB                        Screen            Display Size        4.7 Inch            Type        IPS ，QHD，G+F+F Capacitive Screen            Resolution        960 x 540pixels                        Support Format            Ringtones Type        Polyphonic\/MP3            Audio File Format        MP3\/WAV\/AMR\/AWB            Video File Format        3GP\/MPEG4            Image File Format          JPEG\/BMP\/GIF\/PNG\/GIF            E-book Format        TXT\/CHM\/DOC\/HTML            FM Radio        Yes， earphone needed            Earphone Port        3.5mm            Card Extend        Support TF card up to 64GB extended                        General            Camera\/Picture Resolution        Dual Cameras，2.0MP front camera; 5.0MP    back camera with flashlight and auto focus            Language         Hungary， Dutch， Norwegian bok omar， Polish， Portuguese， Romanian， Slovak， Slovenian， Finnish， Swedish， Vietnamese， Turkish， Greek， Bulgarian， Russian， Ukrainian， Hebrew， Arabic， Thai， Korean，Simplified\/Traditional Chinese More details please refer to the screenshots            Phonebook        500            Message        SMS\/MMS            Input        Handwrite\/Keypad            TV        No            GPS        Yes， Satellite Navigation GPS chip built-in， support A-GPS            JAVA        No            WIFI        Yes， 802.11 b\/g\/n            Bluetooth        Yes， BT4.0 (A2DP+EDR)              Sensor        Light Sensor ，G-sensor ， Proximity sensor            Multi-Touch        Yes， 5 point touch            Dimensions        136*