Feature: 1. Scope of Application: This tester can be used for weak current equipment below 65V to find lines, such as switches, routers and other weak current equipment. 2. With Earphones: Comes with earphones that you can wear it when testing to reduce noise disturbance, achieving better testing effects. 3. Easy Manipulation: This cable tester possesses easy manipulation, one step ahead of others in line hunting, line alignment, and line measurement. 4. Gear Function Switch: Equipped with 2 gear independent line hunting, line measuring function switch, you can make adjustments according to your own needs. 5. Ideal Replacement: This tester with excellent performance and portability, ideal replacement for the old and damaged parts. Specification: Item Type: Cable Tester Material: ABS Battery: Detector 9V 6F22 Battery x 1 (Without Battery) Receiver 9V 6F22 Battery x 1 (Without Battery) Uses: Shielded, unshielded lines can be found, switch, live hunt, wire sequence testing, adjustable sensitivity. . Package List: 1 x Tester1 x Receiver2 x Test Cable1 x Test Clip1 x Earphone1 x Instruction Manual1 x Storage Bag