Welcome to our store! 1. Set Contents: This cable testing set includes 1 tester, 1 receiver, 2 test cables, 1 test clip, 1 earphone, and 1 storage bag. 2. Gear Function Switch: This line finder is equipped with 2 gears for independent line searching and line measurement function switches, allowing you to make adjustments according to the actual situation. 3. Earphone Function: This cable testing set comes with earphones for testing to reduce noise interference, providing excellent testing effects. 4. Wide Range of Applications: This cable tester can be used for low-voltage devices under 65V, such as switches, routers, and other low-voltage devices. 5. Easy to Use: Our cable tester is simple to operate, allowing for quick line searching and line measurement, making it very practical. Item Type: POE Multifunctional Line Finder Material: ABS Battery: Tester 9V 6F22 battery x 1 (without battery) Receiver 9V 6F22 battery x 1 (without battery) Applications: Can search shielded or unshielded lines, switch or powered line search, line sequence test, sensitivity can be adjusted. 1 x Tester (Shipped without battery) 1 x Receiver (Shipped without battery) 2 x Test Cable 1 x Test Clip 1 x Earphone 1 x User Manual 1 x Storage Bag Satisfaction Guarantee: Customers are our top priority. If you encounter any problems with the product, please contact the seller immediately. We strive to provide satisfactory customer service.