Color:Black or White Screen 7" 10.1" 13" 15" 17" 18" 21.5" 24" 10 points capacitive touchscreen Resolution 1280×800 1366x768 1920 x1080 Brightness 250 cdm2 Contrast 800:1 ,1000:1 CPU Allwinner A64 RAM 1GB (2GB optional) ROM 8GB (16GB optional) Operating system Android 6.0 system The internet WIFI supports connection to WIFI Internet access, 802.11b/g/n Ethernet, support for connecting network cable Bluetooth BT 4.0 3G/4G supports Internet access via an external 3G/4G USB dongle interface SD card slot (maximum support 32GB) Mini USB Slave (USB OTG) USB Host 2.0 RJ45 (Optional support PoE function for 10.1" 13" 15" 17" 18.5") Headphone jack 1 3.5 mm headphone jack with microphone DC jack multimedia Video format Supports MPEG-1, MPEG-2, MPEG-4, H.263, H.264, VC1, RV, etc. (up to 1080P) Audio format Supports MP3, WMA, AAC, etc. Image format JPEG, JPG Other parameters Wireless mouse and keyboard support Speaker 2 2W speakers Camera: None OSD language Chinese, English, Italian, German, Korean, Russian, French, Spanish, Arabic, and other multi-language OSD operations Software support Free installation of applications (QQ, WeChat, maps, games, email, self-developed applications, etc.) Accessories: power adapter 1, instruction manual Every machine we have professional quality technicians undergo strict testing to ensure quality, to ensure that each customer can receive qualified and satisfactory products.