Features: Brand new and high quality. 1. Judge the continuity of wires and cables. 2. Trace wires and cables and diagnose the breakpoint. 3. Receive the tone signal on cables and wires. 4. Identify the status of the working telephone line (clear, ringing, busy). 5. Send a solid tone and dual alternating tone to the target cables and wires. Specifications: Item Type: Network Cable Tester Diagnostic Finder Tool Material: Plastic Color: Yellow Main Unit Size: 23.5x4x3.5cm/9.25x1.57x1.38in (approx.) Small Unit: 6.5x5.5x3.5cm/2.56x2.17x1.38in (approx.) Package Size: 24x11.5x3.5cm/9.45x4.53x1.38in Quantity: 1 set (other accessories demo in the picture are not included) Note: 1.Transition: 1cm=10mm=0.39inch 2.Please allow 0-1cm error due to manual measurement. Please make sure you don't mind before bidding. 3.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package Includes: (With retail package) 1 X Network Cable Tester Diagnostic Finder Tool 1 X Package