This phone will only work with 2G: GSM 850\/900\/1800\/1900MHz 3G:WCDMA 900\/1900\/2100MHz 4G: FDD-LTE B1\/3\/7\/20 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. Description: Basic Information Model SISWOO Darkmoon R9 Style Bar Color Black, Gold Netword Band 2G: GSM 850\/900\/1800\/1900MHz 3G: WCDMA 900\/1900\/2100MHz 4G: FDD-LTE 1\/B3\/B7B20(2100\/1800\/2600\/800MHz) Sim Card Dual SIM Card Dual Standby (Dual micro SIM card or One micro SIM + TF card) Shell Material Plastic + metal frame System OS Android 5.1 CPU MT6752 1.7GHz Octa cores (64bits) GPU Mali T760 MP2 450MHz ROM 32GB RAM 3GB Card Extend TF (Micro SD) up to 64GB Front Screen Display Size 5.2 Inch Type IPS OGS Corning Gorilla Glass Resolution 1080 * 1920 pixels Multitouch Yes Back Screen Display Size 4.7 Inch Type E-ink display Resolution 540 * 960 pixels Support Format Ringtones Type Polyphonic \/ MP3 Audio format FLAC, APE, AAC, MKA, OGG, MP3, WAV, MIDI, M4A, AMR Video File Format MP4, 3GP, MOV, MKV, AVI, FLV, MPEG, M2TS, TS Graphical Format JPEG\/PNG\/GIF\/BMP FM Radio Yes, earphones needed Earphone Port 3.5mm Data Transfer & Connectivity Data transfer USB\/Bluetooth Mobile internet WAP\/WiFi General Camera\/Picture Resolution Dual Cameras: Front camera, 8.0MP Back camera, 13.0MP with LED flashlight and auto focus Language English, Chinese Message SMS\/MMS Input Handwrite\/Keypad Infrared Support GPS GPS\/AGPS\/GLONASS(BEIDOU) WIFI 802.11 a\/b\/g\/n Dual band Wi-Fi (2.4GHz\/5GHz) Bluetooth BT4.0 Sensor Gravity Support Ambient light Support Gyroscope Support