Sony 120 Minute Audio Cassette Tape.

High Fidelity Normal Bias (Type 1) Tapes, which have been chosen among many consumers for music and general all-purpose voice recording. The rugged see-through cassette shell makes it easy to gauge how much tape is left so that you can record to your heart's content. Record 120 minutes of your favorite music on each tape. Sony -- meeting all of your audio recording needs.