The Klein Tools VDV526-054 TraceAll Tone & Probe is a versatile tool designed to trace wire paths and identify cables in a variety of applications. Made by the reputable brand Klein Tools, this product is capable of testing RJ11 and RJ45 cables with precision. Manufactured in China, this tool is a must-have for professionals in the business and industrial sectors who require accurate and efficient cable testing and tracking services. With its reliable performance and user-friendly design, the Klein Tools VDV526-054 TraceAll Tone & Probe is a valuable addition to any toolkit.