Eikaiwa QR-800: Speaking Response Speed Training / GOGAKU SHUNJU-SHA / Shunji Yamaguchi (Cassette) Brand: - Both tapes were played through on a cassette player. There are no parts with noise or distorted audio, and they are in good condition. The case and textbook may have some age-related discoloration and clouding. Please refrain from purchasing if you are concerned about this. Stored in a clean, non-smoking room.