Features: 1. Line Tracing: Rapidly find the target wire from among plenty of network, telephone wires. 2. Line Detection: Automatic efficiently scan for the miss wiring, disorder cable, short circuit, broken circuit and other breakpoints. 3. With an earphone support to enable service technician to work conveniently and comfortably in noisy environment. 4. Sensitive sensor, stable and reliable. 5. High quality protective case provides more secure protection. 6. Used in telecommunication network line engineering and daily maintenance, computer network line engineering, other metal wire line engineering and maintenance work Specification: Condition: 100% Brand New Optional Color: #1(Blue), #2(Light Blue) Battery: 2 * 9V Battery(not included) Weight: Approx. 400-405g / 14.1o-14.3z Package List: 1 * Cable Emitter 1 * Cable Receiver 1 * RJ11 Cable 1 * RJ45 Cable 1 * Earphone 1 * Cable with Crocodile Clamp 1 * Black Bag