We are a professional manufacturer of portable monitors. We have 12 years of experience in production, direct factory sales, without intermediaries to make a difference. It can be replaced free of charge within 30 days, with a 13-month guarantee. All we need is 100% satisfaction. If you have any questions, send us an email first and we will be 100% satisfied with this problem immediately. If you have any questions, do not hesitate to contact Prechen [prechen2019@sohu.com] or [Account Service] - [Order History] - [Contact the seller] Specifications 13.3 inch LED Screen Resolution:1920*1080, up to 1080p Panel Size: 13.3inches Thickness :9mm Panel Type: LED backlight Compatible systems:windows7,8,10?iOS Aspect Ratio: 16: 9 (width: height) Contrast: 800: 1 Panel brightness:250 cd/m2 Viewing angle: wide viewing angle 178 degreesPackage included: 1 x 13.3 inch HD Display Monitor 1 x HDMI Cable 1 x USB- C to USB-C Cable (Both ends are Type-c interfaces) 2 x mini USB TO USB 3.0 Transfer line1 x USB to USB-C Cable(Powered Monitor )