Feature Highlights: 1. Multi-Functional Testing – Offers open/short circuit detection, telephone line tracing, cable tracking, DC level testing (DC 3–10V), network line identification, and network cable verification. 2. Low Voltage Alert – When the transmitter’s function switch is set to finding mode, if the battery voltage drops below 6V, the "SCAN" and "line sequence" LEDs flash simultaneously to remind the user to replace the battery. 3. Earphone Jack for Noisy Environments – Use the included earphone to minimize external interference and ensure clear signal detection. 4. Built-in Spotlight – The integrated light allows for convenient operation in low-light or dark conditions. 5. Adjustable Volume & Energy Saving – The receiver features a volume control knob to adjust sensitivity and sound level. The device also includes an auto-shutdown function, powering down after approximately 1 hour of inactivity to conserve battery life. Product Details: This professional network cable tester is designed for efficient and accurate diagnostics of RJ11 and RJ45 connections. Constructed from durable ABS material, it provides reliable performance for telecom and network maintenance tasks. The compact, portable design makes it easy to carry and use in various settings. Ideal for IT technicians, network installers, and home users seeking a versatile cable testing tool. Specifications: - Product Name: Network Line Finder - Model: M469A - Battery: 6F22 9V (not included) - Interface: RJ11, RJ45 - Transmitter Size: 127 x 56.5 x 30 mm / 5 x 2.22 x 1.18 inch - Receiver Size: 198 x 46 x 31.5 mm / 7.79 x 1.81 x 1.24 inch - Material: ABS - Color: Black Package Includes: 4 x Tester 2 x RJ11 Clip 2 x RJ11 Test Cable 2 x RJ45 Test Cable 2 x Storage Bag 2 x Headphone Only the items listed above are included. Note: Slight color variations may occur due to lighting and monitor differences. Measurements may have a tolerance of +/- 1–3 cm.