1. Human Machine Interface; 2. 3.5"( Length x Width = 4:3 ); 3. Great ... sound management system. Product Specification: UN Touch Panel Human Machine Interface (HMI),UNSK-035AE. SpecificationsItems UNSK-035AEDisplayDimension3.5" ( Length x Width ... Road, HighTech Park, Nanshan District, Shenzhen, China. UN Human Machine Interface (HMI) 3.5" UNSK-035AE