Features: 1. 100% brand new and high quality. 2. Hunting function, this product can hunt RJ45, RJ11 and its metal wire. 3. Line function, it can detect cable open circuit, short circuit and wire sequence. 4. Network cable integrity detection, detection of network cable integrity and line pair configuration, network cable open, short, wrong, reverse and cross. 5. The line finder has line level detection, line ringing detection and switch port detection. 6. Suitable for power, circuit testing, network line engineering, monitoring, installation, etc. Specification: Condition: 100% Brand New Model: PM6816 Power: Receiver: 1 * 9V 6F22 Battery(not included) Emitter: 3 * 1. 5V AA(not included) Function: Larger sound, longer detection range, high accuracy and strong anti-interference ability, can find network cable, telephone line, wire, copper shaft cable, hunt function, line function, network line integrity detection, line level detection, line bell Flow detection and switch port detection. Weight: Approx. 371g / 13.1oz Size: Approx. 215 * 45 * 32mm / 8.5 * 1.8 * 1.3in(receiver) 125 * 65 * 30mm / 4.9 * 2.6 * 1.2in(emitter) Package List: 1 * PM6816R Receiver 1 * PM6816T Emitter 1 * Earphone 2 * Testing Cables 1 * Black Bag Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. .