Interactive Flat Panel 86 inch IR Touch Smartboard 4K Display All-in-One PC Android8 for School Classroom Specifications Display Screen Type Display Ratio 16:9 Display Area 1895.04*1065.96 View Angle 178° Resolution 3840(H) x 2160(V) Response Time 6.5 ms Brightness 350 cd/m3 Color Depth 10bit(R), 1.07Billon colors Contrast 1200:1 Life Time 50,000 Hrs Glass 4mm acid-etched tempered glass TV SYSTEM Connection N/A Sound System D/K, B/G, I, M Video System PAL, NTSC, SECAM Channel N/A Sound/SPeaker features Speaker Type Built-In Speaker output 15W * 2 Audio Stereo Balance, Auto volume control, surround sound android system Android Version Android 11.0 GPU Quad-core MaliG52 CPU 4 x ARM Cortex-A55@1.9GHz RAM 4G Dominant Frequency 1.9G ROM 32G DISPLAY CONNECTION PORTS Input Ports (Front) 1*HDMI2.0, 1*TOUCH USB, 3*USB3.0, TYPE-C (Support Touch, Data, Video and Audio transfer) Output Ports(back) 1*HDMI-out; 1*SPDIF, 1*Earphone, 1*RJ45 OUT, 1*AV OUT Input Ports (Back) 2*HDMI2.0, 1*VGA&AUDIO IN, 1*YPBPR, 1*USB 2.0, 1*USB 3.0, 1*TOUCH-USB, 1*RS232, 1*RJ45 IN, 1*AV IN, 1*MIC IN, 1*DP, 1*OPS SLOT TOUCH SYSTEM Sensing Type Infrared Touch Writing Style Finger; Stylus,any opaque object Positioning resolution 32767 x 32767 Communication Mode Full-speed USB (Plug and Play) Scanning Speed 4ms Surface Glass 4mm tempered Glass Positioning Accuracy ≤3mm OS and points support (driver free) Windows 7/8/10, 10 points Android 4.0 and up, 10 points Mac 10.1 to 11, 1 point Linux ubuntu 14.04 ~18.04, 10 points Internet Ethernet 802.3 10/100 Wifi IEEE 802.11 a/b/g/n/ac, 802.3, 802.3u Bluetooth 4.2 or Later TE-YL5-86 Certificates Our products meet the certification requirements of most of countries in the world and have complete certificates. Exhibition: FAQ: 1. Q: Are you a factory?\nA: Yes, we are a factory. We're located in Shenzhen China.\n2. Q: How can I trust your product quality?\nA: Quality is what we put first over the last 15 years. From material purchasing to product delivery, we have own professional staff and procedures to prevent potential quality risk. Our products have been approved by CE & ROHS & ISO & FCC etc.\n3. Q: What's your after-sale service?\nA: If any problems, you will get our reply within 24 hours. Solution will be offered instantly.\n4. Q: Do you have MOQ?\nA: Generally, our MOQ is 1 pcs. But the larger the order is, the more discounts will be given.\n5. Q: Could you offer the OEM&ODM service?\nA: Yes, we can. We've been providing OEM&ODM service for many world-class companies for over 15 years.\n6. Q: What's the leading time?\nA: The leading time for sample would be 3-7 days. As for large order, it takes about 25 days.