Description: HDMI high-definition digital signal line, double-stranded wire and line pair are tested one by one can distinguish which (right) wrong line, short circuit and open circuit. It allows you to make judgments quickly and accurately. Features: 1. Requires one 9V DC battery (Not included). 2. Check the HDMI, RJ45 Cable quickly. 3. Automatically runs all tests and checks for continuity, open,shorted and crossed wire pairs. 4. Hand-held for portability. 5. Connect cable to both master unit and remote to test cable for problems. Specifications: Condition: Brand New Material: ABS Color: Yellow Power supply: 9V DC Battery (not included) Test Power Consumption: 8mA Size: Approx. 10.5 * 9.5 * 2.6 mm / 0.4 * 0.3 * 0.1 in Test Cables: HDMI, RJ45 Package Included: 1 x High Definition Digital Cable Line Tester Suite 1 x Chinese and English specifications Notes: 1.Please allow 1-3 cm error due to manual measurement. Thanks for your understanding. 2.Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. .