Samrt Barcode Scanner Thermal Receipt Printer 4 Inch Diaplay NFC Barcode Scanning Printer100 to 220VAC US Plug Item Type: Smart Printing Scanning Device Material: ABS CPU: ARM A7 4 Core 1.3GHZ, 28nm Low Power Manufacturing Process GPU Graphics Processor: Mali 400 RAM: 2GB ROM: 16GB SD Expansion: Maximum 64GB Expandable Memory ( Shipped Without Memory Card ) Printing Method: Thermal Paper, Thermal Label Line Printing Print Width: Approx. 58mm/2.28in Printing Content: Text, Image, Barcode, 2D Code Device Communication 4G: TD-LTE, FDD-LTE 3G: WCDMA, TD-SCDAM, CDMA WiFi: IEEE 802.11 b/g/n Bluetooth: Bluetooth 4.0 Data Acquisition NFC: ISO18092, ISO14443, ISO15693 Write/Read 1D Barcode Scanning: Resolution 0.078mm, Speed: 100/S 2D COMS Scan: Resolution 752 x 480,>3mil Camera: 8 Million Auto Focus GPS Support Location and Navigation Camera 8 Million Auto Focus,High Brightness LED Fill light PSAM Card PSAM Card: ISO7816 Standard Protocol Micro USB x 1, DC Port x 1, Headphone Jack x 1 LCD: 4.0Inch480 x 800 High Brightness Liquid Crystal Display Physical Characteristics Battery: 7.4V High Performance Lithium Battery 3400mAh x 1 ( Shipped With Built In Battery ) Operating Time: 10-15 Hours Standby Time: 120 Hours Protection Rating: IP65 Physical Keyboard: 29 Keys Touch Screen: Multipoint Capacitive Touch Screen Operating Environment Operating Temperature: -10-60°C Storage Temperature: -20-70°C Humidity Operating Humidity: 35-80 Storage Humidity: 10-90