Item Type: Cable Tracer Weight: 477g / 16.83oz Material: ABS Receiver Battery: 3 x AA dry cell(not included) Line Finder: 6F22 square stacked battery 500mAh (included) Function: With vibration function Package List 1 x Cable Tracer 1 x Receiver 3 x Connection Cable 1 x Battery 1 x Instruction Manual 1 x Storage Bag 1With LCD Display: This line finder is equipped with an LCD display, which can directly display the test results, allowing you to more easily understand the test situation. 2Measures POE and Battery Voltages: This cable tester measures POE power and battery voltages to meet a variety of needs in network maintenance. 3Multifunctional Design: This cable tracer can be used for cable organization, network maintenance, telephone line testing and many other uses. 4Efficient Cable Finding: This cable finder provides fast and accurate location of cables, and the vibration function greatly improves the efficiency of cable maintenance. 5Easy to Carry: This wire finder is compact, lightweight and portable, making it ideal for mobile repair and field maintenance.