The Sperry Instruments ET64220 Wire Tracker Tracer Audio is a reliable and efficient tool for testing various cables such as alligator clips, auto fuse, CO-AX, RJ11, and RJ45. With its yellow color and durable construction sourced from China, this wire tracker tracer audio is designed to provide accurate readings without modifications. Perfect for professionals in the business and industrial sector, this product by Sperry ensures precise testing and tracking of electrical wires with ease.

I need to buy new batteries. These are empty.