Specifications: Model: Basic Lan Tester Cable Types: RJ45, RJ11 LED Indicators: 9 Power Source: 9V battery (not included) Dimensions: 4.2 x 3.5 x 1 inches Weight: 3.5 ounces Use Case: The Basic Lan Tester is a compact and easy-to-use tool designed for testing the connectivity and status of RJ45 and RJ11 cables. It features 9 LED indicators that display the status of each wire in the cable, helping to identify any faults or issues with the cable. The tester is powered by a 9V battery (not included) and is very simple to use – just plug one end of the cable into the tester and the other end into the wall jack or device, and the LED indicators will light up to indicate the status of the cable. The Basic Lan Tester is a versatile and reliable tool that can be used in a variety of applications, from testing network cables in a home or office environment to troubleshooting connectivity issues in larger network installations.