Welcome to our store! 1、Scope of Application: This tester can be used for low-current equipment under 65V to find wires, such as switches, routers, and other low-current equipment. 2、With Headphones: Comes with headphones that you can wear when testing to reduce noise interference and achieve better testing effects. 3、Simple Manipulation: This cable tester has simple operation, one step ahead of others in line hunting, line alignment, and line measurement. 4、Switch Function Switch: Equipped with 2 switches independent line hunting, line measurement function switch, you can make adjustments according to your own needs. 5、Ideal Replacement: This tester with excellent performance and portability, ideal replacement for old and damaged parts. 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 Includes: 1 x Tester 1 x Receiver 2 x Test Cable 1 x Test Clip 1 x Headphones 1 x User Manual 1 x Storage Bag Customers are our top priority. If you find any problems with your product after receiving it, such as damage or incorrect quantity, please contact us immediately. We strive to provide you with the best after-sales service.