Receipt Printer Scanner 4in Touch Screen Thermal Printer Barcode Scanner AC for Android 6.0 Item Type: Receipt Printer Scanner CPU: ARM A7, 4 core, 1.3GHz, 28nm, low power system. GPU: Mali-400 graphics processor. RAM: 2GB. ROM: 16GB. Memory Card Expansion: Supports up to 64GB of memory expansion, shipped without a memory card. Printing Method: Thermal paper, thermal label line printing Printing Width: Approx. 58mm / 2.28in Print Content: For text, images, barcodes, QR codes. Communication: 4G: TD LTE/FDD LTE 3G: WCDMA/TD-SCDAM/CDMA Wi Fi: IEEE 802.11 b/g/n Bluetooth: 4.0 GPS: Supports positioning and navigation cameras. 8MP autofocus, highlighted LED fill light. PSAM Card: ISO7816 standard protocol Interface: 1 x Micro USB, 1 x DC port, 1 x headphone jack. LCD: 4.0in 480 x 800 high brightness LCD display. Battery: 1 x 7.4V high performance lithium battery, 3400mAh. Shipped with built in battery. Working Hours: 10-15 Hours Standby Time: 120 Hours Protection Level: IP65 Physical Keyboard: 29 Keys Touch Screen: Multi point capacitive touch screen. Operating Temperature: -10~60 ℃ Storage Temperature: -20~70 ℃ Operating Humidity: 35-80% Storage Humidity: 10~90%