Main Features of UT681 HDMI Product HDMI/MINI-HDMI High-Definition Data Cable Tester Quickly test line types: Type A to A, A to C, and C to C connectors Check for missing wires, short circuits, open circuits, and cross connections in high-definition cables 20 visible LED status indicators Two test modes: Scan and Full Display, can be freely switched One-button operation Manual/Auto power off (10 minutes of inactivity) Low voltage indication Certification: CE Power supply: 9V stackable battery