1Line Tracing: Rapidly find the target wire from among plenty of network, telephone wires. 2Line Detection: Automatic efficiently scan for the miss wiring, disorder cable, short circuit, broken circuit and other breakpoints. 3With an earphone support to enable service technician to work conveniently and comfortably in noisy environment. 4Sensitive sensor, stable and reliable. 5High quality protective case provides more secure protection.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 workSpecification:Condition: 100% Optional Color:1(Blue),2(Light Blue) Battery: 2 *9V Battery(not included)Weight: Approx. 400-405g / 14.1o-14.3zPackage List:1 *Cable Emitter1 *Cable Receiver1 *RJ11 Cable1 * RJ45 Cable1*Earphone1 *Cable with Crocodile Clamp1 *Black Bag