Dear Sir Madam,Type:android mobile pos terminal qrCPU OS:Quad-core 1.3GHz Android 5.1RAM ROM:512MB DDR2 4GB Nand FlashDisplay:5.5-inch 540*960 IPS-LCDPaper Roll Width Diameter: 58mm 40mmCommunication:WCDMA,WiFi,Bluetooth,GPSBattery:7.4V 4500mAhWiFi:Wi-Fi 802.11 b g nWarranty:1 year factory warranty for main device; 6 months for accessories