1111MicrosoftInternetExplorer402DocumentNotSpecified7 8 磅Normal0Specifications Color BlackLanguage Chinese EnglishSize mm 162x54x28 5 LxWxH Chip MT6739 quad core 1 36Mhz 64 bit processor SIM Card Double card and double standbySMS Function SupportPhysical Side Key SupportOne Click System SupportOperating System Android 9 0Antenna Built in all network communication antenna built in GPS Wi Fi BluetoothWorking Voltage 3 7VReceiving Sensitivity 106dBmMaximum Transmission 23dBm 25dBm All up bitsWorking Temperature 20 to 75 degrees CelsiusStorage Temperature 40 to 85 degrees CelsiusAudio Output 2W 10 distortion Frequency Band MHz 2G GSM 850 900 1800 1900MHz2G CDMA 1X3G WCDMA B1 B2 B5 B83G TD SCDMA B34 B393G EVDO Rev A 800MHz4G FDD LTE B1 B3 B5 B7 B8 B20 B28a B28b4G TDD LTE B38 B39 B40 B41 Network 4G FDD LTE TDD LTE3G WCDMA TD SCDMA CDMA20002G GSM CDMAWi Fi SupportBluetooth BT 4 2 Display Screen 2 4 inch SPI color screenResolution QVGA 320x240TP TFT Storage Flash 4GB 512MBExpanded Supports Micro SD card T FLASH card not included with a maximum support of 32GB Battery and Connector Capacity mAh ≥4000mAhData Cable type CHeadset 3 5mmFeatures 1 Robust Connectivity Options This device ensures uninterrupted communication across various network bands including 4G 3G and 2G It is compatible with GSM CDMA WCDMA TD SCDMA LTE FDD and LTE TDD Furthermore it supports Bluetooth 4 2 and Wi Fi offering versatile connecti