Model 7", 8", 9", 10.1" 4G calling tablet PC(Support OEM) Chipset MTK8735/SC9832A/MTK6735/ OS Android 5.1/ Android 6.0/Android 7.0 4G Support, B1,3,7,20 or 2,4,7,17 3G Yes, WCDMA 2100MHZ (other bands Optional) 2G(GSM) GSM 850/900/1800/1900MHz Display 7", 8", 9", 10.1"1024*600 TN, IPS 800*1280, 1920*1200 RAM 512M DDR3 (1GB/2GB Optional) Storage Nand flash 4GB (8GB/16GB/32GB Optional) Wifi WIFI 802.11b/g/n Camera Front 0.3MP (Rear 0.3MP&2.0MP/5.0MP Optional) Battery 3.7V/2000mAh (2400mAh / 3000mAh/4000mAh/5000mAh/6000mAh Optional) I/O port 1*(Micro USB Port, TFCard Slot, Earphone Jack) Color & Material Different colours Plastic shell Accessories: Simple Giftbox, Adaptor, USB cable, Manual