The Radio Shack LN 30 Low Noise 2 Pack Cassettes with Normal Bias are high-quality, recordable cassette tapes designed for audio recording purposes. With a low noise design and normal bias setting, these cassette tapes ensure clear and accurate sound reproduction. Perfect for personal recordings or for use in audio editing projects, this 2-pack offers reliable performance and compatibility with various audio recording devices. Ideal for those looking for a dependable and versatile audio recording solution.