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><br>This CKCOM K3  Smartphone Android 4.3 Operating System， come with the MT6582A quad core 1.3 Ghz，high-speed processing platform， it can be run smoothly any applications and gadget . 1GB RAM + 4GB ROM big memory. is quite amazing and impressive.With OTG function， you can connect a mouse， keyboard or U-disk as you like.It support dual SIM card dual standby，WIFI，Air Gesture， Intelligent Wake Up ect.<br><br><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>          Basic Information            Model        CKCOM K3            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 4.3            CPU        MTK6582A Quad Core 1.3GHz            ROM        4GB            RAM        1GB                        Screen            Display Size        5.0 inch            Type        IPS ，HD，G+F+F Capacitive Screen            Resolution        720x 1280pixels                        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; 8.0MP    back camera with flashlight and auto focus            Language        Spanish， Portuguese (Brazil)， Portuguese (Portugal)， Italian， German， Dutch， French， Polish， Romanian， Turkish， Russian， Arabic， Indonesian， Malay， Thai， Vietnamese， Hindi， Hebrew，Simplified\/Traditional Chinese More details please refer to the screenshots            Phonebook        500            Message        SMS\/MMS            Input        Handwrite\/Keypad            TV        No