Experience high-quality audio recording with the Sony HF 90-minute cassette tapes. This pack of four offers a reliable and durable option for capturing your favorite music or podcasts, ensuring that your recordings are preserved with exceptional clarity. Designed for use with a wide range of cassette players and recorders, these tapes provide versatility for both professional and personal audio applications. Each tape in this sealed pack is crafted to meet Sony's exacting standards, guaranteeing a consistent performance. With a normal bias recording capability, you can expect an authentic audio experience that's difficult to come by in the digital age. Whether you're archiving memories or creating new audio masterpieces, these cassette tapes are a fine choice for your audio recording needs.