Maxell 108527 Optimally Designed Flat Packs with Low Noise Surface 90 Min Recording Time Per Cassette Optimally designed for voice recording Low Noise surface provides a suitable media for music Total recording time per cassette tape is 90 minutes or 45 minutes per side Optimally designed for voice recording, its Low Noise surface provides a suitable media for music, as well Total recording time per cassette tape is 90 minutes or 45 minutes per side