The TENMA Audio Impedance Tester model 72-6948 is a reliable tool for measuring the impedance of audio equipment. With its high-quality construction and advanced features, it is ideal for use in professional settings. The brand name Tenma is synonymous with excellence in the industry, and this tester is no exception. Designed specifically for audio equipment, this tester is perfect for measuring the impedance of speakers, headphones, and other audio devices. Its compact size and lightweight design make it easy to transport and use on the go. The TENMA Audio Impedance Tester model 72-6948 is a must-have for any professional audio enthusiast.